remote code execution | Breaking Cybersecurity News | The Hacker News

A fix for CVE-2026-83844 , a remote code execution flaw in Windows Paint, is now in the Microsoft Store. Paint gets this fix only through a Store update, not through Windows updates. The fixed build, 11.2609.401.0, was the newest Paint build in all ten countries The Hacker News checked today. The flaw is an out-of-bounds read that could let an attacker run code over a network. Microsoft rates it as Important, with a CVSS score of 8.1, and says that a successful attack requires a deep understanding of the target system. The flaw was not known to be exploited or publicly disclosed when the company published it on October 13. Brian Vitko of RFF, a device-management software maker, checked which Paint builds the Store offered in six countries earlier this week. He found that the newest in each was 11.2605.81.0, a build without the fix. His test virtual machine has since moved to the fixed build on its own, through Store auto-update. That is one machine, and how quickly other PCs w...

An update on Athena, and some unsolicited predictions on what's coming next On Saturday, Dario Amodei published We Must Pace the Frontier . I agree with him. Go read it if you haven't. I've spent the summer looking at what these models find, and the gap he describes between what they can do and what the rest of us are ready for is the one I've been staring at since May. The hardest piece of his plan is the one that asks governments to coordinate. They're in a difficult spot: regulate too little and a US company accidentally builds the weapon, regulate too much and it gets built somewhere else, and open source isn't governable either way. Where governments can act is on consumption: not what the models can do, but what happens to what they find. Who gets a vulnerability first, how fast a fix reaches the people running the code, whether the operators who can't move on an attacker's timeline get a head start. That's what Gold Eagle is. It matters...

Two flaws in Barracuda's Email Security Gateway , an email-filtering appliance, can be chained to run commands on it as root, its highest level of access, with no login required. The company released patches on Monday, and the security firm watchTowr detailed the attack chain on Thursday. One flaw, CVE-2026-116606 , is an authorization bypass. An unauthenticated attacker can use it to restore a crafted configuration backup and change the appliance's global settings. The other, CVE-2026-111560 , is a command injection. It runs commands as root but normally needs an administrator account, and on the Email Security Gateway the bypass gives an attacker that access. Chained, the two let an attacker reach root with no login. Affected Products and Fixes The authorization bypass affects only the Email Security Gateway. The command injection reaches five other products, but on those it still needs an administrator account. Mandiant, which assigned the two CVE records, rates...

Next.js released an  out-of-band security update  on October 14 that fixes two critical flaws allowing unauthenticated remote code execution, along with a high-severity denial-of-service flaw. One code-execution flaw is in React Server Components, and the other in librsvg, the open-source library Next.js uses through the sharp package to handle SVG images. The fixes are in Next.js 16.4.1 and 15.5.28, the current Active and Maintenance long-term support (LTS) releases. What Was Fixed The update covers three separate issues. Vercel, which develops Next.js, rated both code-execution flaws critical, each with a CVSS score of 9.5. The table lists the versions each issue affects and the version that fixes it. Issue Affected versions Fixed in Who is exposed Code execution through use cache ( GHSA-673q-mjm6-r5xr ...

Cybersecurity researchers have disclosed technical details of a recently patched critical security flaw in Citrix NetScaler ADC and Gateway that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-88772 (CVSS score: 9.5), has been described as a memory overflow bug in the Datagram Transport Layer Security (DTLS) protocol handling that's rooted in the NetScaler Packet Processing Engine (NSPPE). "Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial-of-service," the U.S. Cybersecurity and Infrastructure Security Agency (CISA) said . The issue, per watchTowr , is that NetScaler implicitly trusts the declared fragment size in the DTLS handshake header's fragment_length field (i.e., 1 byte), while the header simultaneously claims that the complete message, as denoted by the length field, is 120...

Two critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway that allow remote code execution have been exploited in the wild, Citrix confirmed on September 27. It released fixes for both, along with six other flaws. One of the two affects every deployment on an affected version, including those in the default configuration. The bulletin came a day after security firm watchTowr said two unpatched NetScaler RCE flaws had been exploited, and after some administrators said they had taken appliances offline. Citrix did not say whether its two flaws are the ones watchTowr described, but they match that account. NetScaler ADC and NetScaler Gateway sit at the edge of enterprise networks, where they handle VPN and remote access, load balancing, and user authentication. Citrix said in its bulletin that the two exploited flaws are: CVE-2026-88771 (CVSS v4 score: 9.5) - An improper input validation flaw that lets an unauthenticated attacker run arbitrary commands. It a...

A SharePoint Server vulnerability that Microsoft initially classified as a spoofing flaw with a CVSS score of 6.5 actually enables authenticated remote code execution, according to full technical details published today by Viettel Cyber Security researcher Dinh Ho Anh Khoa. The flaw, CVE-2026-65660 , affects SharePoint Server 2016, 2019, and Subscription Edition. Patches have been available since the  August 11 security updates , and the National Vulnerability Database scores it 8.8. Microsoft's advisory  describes CVE-2026-65660 as allowing an authorized attacker to perform spoofing and assigns no impact to integrity or availability. The CVE record that Microsoft publishes separately, updated on September 11, titles the same flaw a remote code execution vulnerability and says it allows an authorized attacker to execute code. Both records assign CWE-94, a code-injection weakness. Defenders who triaged CVE-2026-65660 based on the advisory saw a moderate spoofi...

Cisco has warned that a new critical vulnerability impacting AsyncOS Software for Cisco Secure Email Gateway has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-76461 , carries a CVSS score of 9.8 out of a maximum of 10.0. It has been described as a case of insufficient validation in the email parsing logic that could allow an unauthenticated, remote attacker to run arbitrary commands with root privileges on the underlying operating system. "An attacker could exploit this vulnerability by sending a crafted email message that contains malicious SQL statements through an affected device," Cisco said in a Monday advisory. "A successful exploit could allow the attacker to execute arbitrary SQL statements, leading to command execution with root privileges on the underlying operating system." The shortcoming affects Cisco Secure Email Gateway, both physical and virtual, regardless of device configuration. However, the networkin...

SAP has released security updates to address multiple vulnerabilities, including a maximum-severity flaw in SAP Extended Passport (EPP) Processing that could have a severe impact on the confidentiality, integrity, and availability of the application The vulnerability, tracked as CVE-2026-44756 (CVSS score: 10.0), has been described as a case of memory corruption. Discovered and reported by SAP security company Onapsis, it has been codenamed OVERPASS . The flaw, which resides in the SAP kernel's processing of the Extended Passport (EPP), is exploitable remotely and without authentication, and allows bad actors to run arbitrary operating system commands on the SAP host with SAP administrative privileges, leading to a total compromise of the underlying SAP business data and processes. CVE-2026-44756 stems from a missing boundary validation during the deserialization of EPP data, leading to a memory safety violation when processing externally supplied length fields. An unauthe...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a maximum-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities ( KEV ) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by September 11, 2026. The vulnerability in question is CVE-2026-86218 (CVSS score: 10.0), which has been described as a case of static code injection. It has been patched in N-central 2026.3 Hotfix 4 , released on September 5, 2026. "N-able N-central contains a static code injection vulnerability that could allow for pre-authentication remote code execution," CISA said. The development came shortly after Huntress said it commenced an investigation following the compromise of a customer's fully patched N-central production environment on September 4, 2026. However, it remains unclear if the intrusion involved CVE-2026-86218 or two other vulnerabilities ( CVE-2026-86206 and CVE-2026-86207 )...

Security researcher Olivier Laflamme has disclosed two independent root remote code execution (RCE) chains affecting the Unitree G1 EDU , including a Bluetooth Low Energy (BLE) path that can reach root on the robot's Locomotion PC. The flaws are tracked as  CVE-2026-76639  and  CVE-2026-76640 , with the first involving a network-adjacent path through chat_go and bashrunner and the second beginning from BLE proximity. An exact fixed firmware release has not been verified in any accessible Unitree guidance, leaving G1 EDU owners without a confirmed release target for either vulnerability. Laflamme said Unitree patched the cloud account-to-robot ownership check in July 2026, closing the cross-owner arbitrary-G1 path. As of the August 27 disclosure, a G1 owner could still use an account bound to their own robot to recover its Advanced Encryption Standard (AES) key. The underlying BLE issues, a write to 0xFFE2 that does not require pairing and the BSS buffer overflow,...

The CERT Coordination Center (CERT/CC) has disclosed two unpatched vulnerabilities in Kaltura's HTML5 video player library that allow a remote, unauthenticated attacker to read arbitrary files from a server and execute code on it. The flaws, tracked as CVE-2026-19913 and CVE-2026-19912 , both stem from the same unsafe deserialization in the mwEmbedLoader.php endpoint of the mwEmbed player library, which Kaltura also distributes as html5lib. Neither requires authentication or a Kaltura session token, and network access to the endpoint is the only precondition CERT/CC states. No patch is available, and CERT/CC said it was "unable to reach Kaltura to coordinate these vulnerabilities." Administrators are advised to restrict or disable external access to the endpoint and to enforce a strict allow-list for the ServiceUrl parameter that permits only legitimate backend API URLs. No exploitation had been reported at the time of writing, and neither CVE appeared in CISA...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday warned of active exploitation efforts targeting a recently patched critical security flaw impacting Gitea. The vulnerability in question is CVE-2026-60004 (CVSS score: 9.8), a case of remote code execution that allows an attacker with ordinary write access to a repository to execute arbitrary shell commands as the Gitea OS user. "Gitea's diffpatch endpoint can be abused to install and execute a Git hook from repository-controlled content," according to an advisory released by Gitea last month. "With default open registration, an unauthenticated visitor can obtain the required write access by registering an account and creating a repository." Security researcher Shai rod (aka NightRang3r) has been credited with discovering and reporting the issue. The issue affects all versions of Gitea from version 1.17 and has been patched in version 1.27.1. As The Hacker News reported pre...

Update: The story was updated after publication to note that the vulnerability has not been exploited. Although the security bulletin originally marked the "Exploited" field under the Exploitability Assessment table as "Yes," on August 21, 2026, Microsoft corrected the "Exploited" status to "No" after The Hacker News contacted the company for comment. It also noted, "this vulnerability was not exploited in the wild." "We identified and addressed this issue with a fix and released CVE-2026-69836 for greater transparency . There are no additional actions customers need to take,” a Microsoft spokesperson told The Hacker News. The headline has been edited to reflect this change. The original story follows below - Microsoft on Thursday warned of a maximum-severity security flaw in Entra ID that it said has been exploited in the wild, but noted that no customer action is required. The vulnerability, tracked as CVE-2026-69836...

Cybersecurity researchers have disclosed a critical security flaw in isolated-vm , a popular open-source sandbox with more than 2,900 stars and 190 forks on GitHub, that could allow attackers to escape the confines of the isolated environment. The vulnerability (" GHSA-864f-rcv7-6rh4 "), which has yet to be assigned a CVE identifier, impacts all versions of the library before and including 7.0.0. It has been patched in versions 6.2.0 and 7.0.1 released earlier this month. Isolated-vm is a Node.js library for running untrusted JavaScript inside a V8 Isolate , an independent instance of the Google V8 JavaScript engine, allowing multiple sandboxed JavaScript environments to run concurrently without sharing data or interfering with each other. The npm package has witnessed nearly 1 million downloads over the past week. Because each V8 Isolate has a separate state and maintains its own heap, it is not possible to directly pass JavaScript objects from the main Node.js threa...

A now-patched security flaw impacting Zimbra Collaboration (ZCS) has come under active exploitation in the wild, according to the Polish Computer Emergency Response Team (CERT Polska). The vulnerability in question is CVE-2026-73570 (CVSS score: 8.9), which refers to a case of command injection that can lead to remote code execution. "A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed, and SNMP notifications are enabled," according to a description of the flaw in the NIST National Vulnerability Database (NVD). "Due to improper sanitization of untrusted input during SNMP notification processing, an unauthenticated attacker can send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user." The security issue was patched by Zimbra last month with the release of version 10.1.20. In a bulletin issued earlie...

Security researchers at Cycode have disclosed a chain of flaws in AIT-GUI, the browser-based operator console for NASA/JPL's open-source AMMOS Instrument Toolkit, that allow an unauthenticated attacker to issue arbitrary commands to the software's spacecraft and instrument command bus. The chain, tracked as GHSA-p9r8-2q67-fp86 and rated 9.4 on the CVSS v3.1 scoring system, impacts AIT-GUI versions 2.5.1 and earlier, with the advisory listing version 2.5.2 as the fixed release. The advisory, published August 13, 2026, states that no CVE has been assigned to it. The AMMOS Instrument Toolkit is a framework for building ground data systems, the software that sends commands to instruments and spacecraft and processes the telemetry coming back down. AIT-GUI is its operator console, and the endpoints in question relay operator commands to a command bus. "The blast radius of an unauthenticated POST is measured in issued instrument commands, not defaced pages," Cycode ...

Cybersecurity researchers have disclosed details of a critical flaw in the Elementor Pro WordPress plugin that, if successfully exploited, could lead to remote code execution. The vulnerability, tracked as CVE-2026-32475 , carries a CVSS score of 9.0 out of 10.0. It has been described as a case of unrestricted upload of a file with a dangerous type. "The flaw lives in the Forms module's File Upload field, where the extension check and the file-move step run in two separate loops with different handling of empty file entries," Patchstack said . "By submitting two file parts for the same field, an unauthenticated attacker skips the extension blocklist entirely and writes a PHP file into a public directory." This discrepancy in how it validates the file's extension and moves the uploaded file to a public directory when empty file entries are processed turns a restricted file-upload field into an unauthenticated remote code execution primitive. Succes...

Two critical vulnerabilities impacting MLflow, an open-source artificial intelligence (AI) platform, and FUXA, an open-source, web-based SCADA / HMI software built for operational technology (OT) and industrial automation, are witnessing malicious scanning and exploitation efforts. According to independent reports from watchTowr and VulnCheck, the vulnerabilities in question are as follows - CVE-2026-64849 (CVSS score: 9.3) - An unauthenticated Server-Side Request Forgery (SSRF) vulnerability in MLflow that can allow an attacker who can reach the Tracking Server (mlflow server) to issue HTTP requests to arbitrary internal cloud metadata endpoints and extract sensitive data. (Affects versions < 3.15.0) CVE-2026-25895 (CVSS score: 9.5) - A missing authentication for a critical function and path traversal vulnerability in FUXA that can allow an unauthenticated, remote attacker to write arbitrary files to the server file system and achieve remote code execution. (Affects ve...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a critical flaw impacting Ray to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. Ray is an open-source, Python-native distributed computing framework designed to scale artificial intelligence and machine learning workloads. As of writing, the GitHub project has more than 43,500 stars and has been forked over 7,900 times. The vulnerability in question relates to CVE-2025-62593 (CVSS score: 9.4), which can result in remote code execution via web browsers like Mozilla Firefox and Apple Safari by means of a DNS rebinding attack . "Due to the longstanding decision by the Ray Development team to not implement any sort of authentication on critical endpoints, like the /api/jobs & /api/job_agent/jobs/ has once again led to a severe vulnerability that allows attackers to execute arbitrary code against Ray," according to an advisory shared by Ray ...