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A TantoSec proof-of-concept turns an AES-CBC "padding oracle" in Telerik UI for ASP.NET AJAX into unauthenticated remote code execution — but only against applications in a specific non-default configuration, and Progress patched the chain in July. There are no confirmed reports of exploitation in the wild. Security firm TantoSec has published a working exploit chain targeting vulnerabilities in Telerik UI for ASP.NET AJAX that can allow an unauthenticated attacker to execute remote code on the server hosting a vulnerable application. Progress Software patched the flaws in July, and exploitation requires a non-default configuration — but the release pairs a detailed write-up with a ready-to-run tool and two payloads, putting a complete attack path in public hands for the first time. The underlying flaws are not new. Progress shipped the fix in version 2026.2.708 (2026 Q2 SP1) on July 8 and published the CVEs and advisory on July 22. What changed on September 7 is t...

Every on-premises N-central build below 2026.3.1.14 — including servers updated to Hotfix 3 a day earlier — needs Hotfix 4. N-able's incident notice says the flaw has been exploited in the wild; its release notes say that is unconfirmed. N-able has released its  fourth hotfix  in five weeks for the N-central remote monitoring and management (RMM) platform, this time for a maximum-severity vulnerability that could allow remote code execution on the N-central server without authentication. The company's own communications disagree on whether the flaw has already been exploited. The vulnerability, tracked as  CVE-2026-86218 , carries a CVSS 4.0 score of 10.0, assigned by N-able as the CVE Numbering Authority, and is classed as a static code injection weakness (CWE-96). It affects every N-central build before 2026.3.1.14, the build shipped as 2026.3 Hotfix 4 in the early hours of September 6 (UTC). That includes servers already updated to  Hotfix 3 ...

Cybersecurity researchers have unpacked JSCeal , a sophisticated compiled V8 JavaScript (JSC) malware with credential harvesting, surveillance, and traffic-interception capabilities. "The payloads are protected with javascript-obfuscator , using multiple techniques including RC4-protected strings, control-flow flattening, proxy functions, and operation wrappers," Check Point Research said in a technical report published last week. JSCeal was first documented by Check Point in July 2025, highlighting the threat actors' use of fake cryptocurrency trading sites to which unsuspecting users are redirected via malicious ads on Facebook and Google. The counterfeit sites instruct them to download bogus installers for TradingView that lead to the deployment of the malware. The activity overlaps with a threat cluster tracked under the monikers WEEVILPROXY and MeadowLocust. Malvertising campaigns distributing the malware make use of two ZIP archives delivered via PowerShell...

Attackers are exploiting MikroTik routers with their Secure Shell (SSH) remote-access service, which is reachable from the internet, to gain full administrative control without authentication, according to  CERT Polska's attack warning , published on September 5. Successful attacks date to at least September 2. The Hacker News’s September 6 review of the warning found no victim count or attacker identity. MikroTik's security update  lists fixed RouterOS releases. CERT says the fixes prevent the observed attacks and recommends immediate installation, followed by a check for unauthorized configuration changes. According to the  vendor's default firewall explanation , home MikroTik devices block public access to management ports while their default firewall rules remain intact. The Hacker News checked CERT's  affected RouterOS versions  against MikroTik's listed fixes on September 6. Use the  official RouterOS downloads  for your update. ...

Elastic Security Labs has documented four previously unreported programs associated with REVSTEALER, an emerging Windows information stealer, that remain on an infected machine after the stealer deletes itself. One of them switches off Windows Update and Microsoft Defender before running a cryptocurrency miner. The company named the four programs ProManager , WinUpdate , SoftManager , and LockAppHost and  published the findings on September 2 , along with a  technical white paper . REVSTEALER has been sold as a commercial infostealer since at least February 2026, when the earliest sample was first detected on VirusTotal. The core stealer exfiltrates browser passwords and cookies, cryptocurrency wallets, gaming accounts, messaging data, and files, then reports "complete" to its server, deletes itself, and leaves no persistence. The four newly documented programs work differently. Each installs itself into the user's profile and stays there. Elastic recovered the ...

Attackers are exploiting a new unpatched vulnerability in Magento Open Source and Adobe Commerce that lets them run malicious code on an online store's server without logging in, Dutch e-commerce security company Sansec said in an  advisory published on September 5 . Sansec, which discovered the flaw and named it StyleSmuggler , said attacks started on September 4. "Sansec is publishing early because stores are being compromised right now," the company said. As of September 6, Adobe has not published an advisory, a CVE identifier, a patch, or a workaround, and its  Adobe Commerce security bulletin index  lists nothing after the August 11 update. A successful attack gives the attacker code execution on the store's server and installs a persistent backdoor. Sansec said all current versions are affected, including 2.4.9, and that it reproduced the full unauthenticated chain on clean Magento Open Source installations of 2.4.7, 2.4.8, and 2.4.9. Its ...

JetBrains is urging Cadence users to revoke and rotate all credentials following a security incident last month in which unidentified threat actors exploited a recently disclosed critical vulnerability in TeamCity to breach its own environment. "Cadence users should immediately revoke or rotate all credentials and secrets that may have been used to run their Cadence executions," JetBrains said . "They should also treat all executions, including their inputs and outputs in your Cadence project, as potentially untrusted." "As the threat actors gained access to the Cadence server, any credentials or secrets stored in Cadence, contained in the compromised backup, or made available to executions on the affected server should be considered compromised and must be revoked or rotated." Cadence is a JetBrains-hosted cloud computing service that integrates with PyCharm via an optional plugin to let developers run machine learning and heavy workloads on cloud...