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A highly critical vulnerability has been uncovered in the GNU C Library (glibc) , a key component of most Linux distributions, that leaves nearly all Linux machines, thousands of apps and electronic devices vulnerable to hackers that can take full control over them. Just clicking on a link or connecting to a server can result in remote code execution (RCE), allowing hackers to steal credentials, spy on users, seize control of computers, and many more. The vulnerability is similar to the last year's  GHOST vulnerability (CVE-2015-0235) that left countless machines vulnerable to remote code execution (RCE) attacks , representing a major Internet threat. GNU C Library (glibc) is a collection of open source code that powers thousands of standalone apps and most Linux distributions, including those distributed to routers and other types of hardware. The recent flaw, which is indexed as CVE-2015-7547 , is a stack-based buffer overflow vulnerability in glibc's D...

Humankind had come a long way from the time when the Internet became mainstream. What started as a research project ARPANET (Advanced Research Projects Agency Network) funded by DARPA has grown exponentially and has single-handedly revolutionized human behavior. When WWW (world wide web) came into existence, it was meant to share information over the Internet, from there part through natural evolution and part through webonomics driving innovations, Internet & www has metamorphosized into the lifeblood of the world. It is hard to imagine now how the world functioned before the time of the Internet. It has touched each aspect of human life and is now critical for day to day existence. No business today can exist without an online presence. It is no more just a medium to share information, but world economics runs over the web nowadays. Organizations, governments, and people all depend on this. New warfares will not happen in the real world but would be fought over the cyber...

If you are a regular reader of The Hacker News, you might be aware of an ongoing cyber attack — detected in the wild by McAfee and FireEye — that silently installs malware on fully-patched computers by exploiting an unpatched Microsoft Word vulnerability in all current versions of Microsoft Office. Now, according to security firm Proofpoint, the operators of the Dridex malware started exploiting the unpatched Microsoft Word vulnerability to spread a version of their infamous Dridex banking trojan . Dridex is currently one of the most dangerous banking trojans on the Internet that exhibits the typical behavior of monitoring a victim's traffic to bank sites by infiltrating PCs and stealing victim's online banking credentials and financial data. The Dridex actors usually relied on macro-laden Word files to distribute the malware through spam messages or emails. However, this is the first time when researchers found the Dridex operators using an unpatched zero-day flaw...

This newly discovered bugs in Java and Python is a big deal today. The two popular programming languages, Java and Python, contain similar security flaws that can be exploited to send unauthorized emails and bypass any firewall defenses. And since both the flaws remain unpatched, hackers can take advantage to design potential cyber attack operations against critical networks and infrastructures. The unpatched flaws actually reside in the way Java and Python programming languages handle File Transfer Protocol (FTP) links, where they don't syntax-check the username parameter, which leads to, what researchers call, protocol injection flaw. Java/Python FTP Injection to Send Unauthorized SMTP Emails In a blog pos t published over the past week, security researcher Alexander Klink detailed the FTP protocol injection vulnerability in Java's XML eXternal Entity (XXE) that allows attackers to inject non-FTP malicious commands inside an FTP connection request. To demonst...

A hacker with little more than a minute can bypass the authentication procedures on some Linux systems just by holding down the Enter key for around 70 seconds. The result? The act grants the hacker a shell with root privileges, which allows them to gain complete remote control over encrypted Linux machine. The security issue relies due to a vulnerability ( CVE-2016-4484 ) in the implementation of the Cryptsetup utility used for encrypting hard drives via Linux Unified Key Setup (LUKS), which is the standard implementation of disk encryption on a Linux-based operating system. The flaw actually is in the way the Cryptsetup utility handles password failures for the decryption process when a system boots up, which lets a user retry the password multiple times. What's even worse? Even if the user has tried up all 93 password attempts, the user is dropped to a shell (Busybox in Ubuntu) that has root privileges. In other words, if you enter a blank password 93 times – or s...

Today's modern companies are built on data, which now resides across countless cloud apps. Therefore  preventing data loss  is essential to your success. This is especially critical for mitigating against rising ransomware attacks — a threat that  57% of security leaders expect to be compromised by within the next year .  As  organizations continue to evolve, in turn so does ransomware . To help you stay ahead, Lookout Chief Strategy Officer, Aaron Cockerill met with Microsoft Chief Security Advisor, Sarah Armstrong-Smith to discuss how  remote work  and the cloud have made it more difficult to spot a ransomware attack, as well as how deploying behavioral-anomaly-based detection can help mitigate ransomware risk.  Access the full interview .  Aaron Cockerill:  I feel like the way modern enterprises operate, which includes a combination of technologies, has allowed the ransomware to thrive. Having experienced this type of attack in my ...

A severe remote code execution vulnerability in Zimbra's enterprise collaboration software and email platform is being actively exploited, with no patch currently available to remediate the issue. The shortcoming, assigned  CVE-2022-41352 , carries a critical-severity rating of CVSS 9.8, providing a pathway for attackers to upload arbitrary files and carry out malicious actions on affected installations. "The vulnerability is due to the method ( cpio ) in which Zimbra's antivirus engine ( Amavis ) scans inbound emails," cybersecurity firm Rapid7  said  in an analysis published this week. The issue is said to have been abused since early September 2022, according to  details  shared on Zimbra forums. While a fix is yet to be released, the software services company is urging users to install the "pax" utility and restart the Zimbra services. "If the  pax package  is not installed, Amavis will fall-back to using cpio, unfortunately the fall-back is ...

After Adobe today releases its first Patch Tuesday updates for 2020, Microsoft has now also published its January security advisories warning billions of users of 49 new vulnerabilities in its various products. What's so special about the latest Patch Tuesday is that one of the updates fixes a serious flaw in the core cryptographic component of widely used Windows 10, Server 2016 and 2019 editions that was discovered and reported to the company by the National Security Agency (NSA) of the United States. What's more interesting is that this is the first security flaw in Windows OS that the NSA reported responsibly to Microsoft, unlike the  Eternalblue SMB flaw that the agency kept secret for at least five years and then was leaked to the public by a mysterious group, which caused WannaCry menace in 2017. CVE-2020-0601: Windows CryptoAPI Spoofing Vulnerability According to an advisory released by Microsoft, the flaw, dubbed ' NSACrypt ' and tracked as CVE-20...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a critical security flaw impacting Citrix NetScaler ADC and Gateway to its Known Exploited Vulnerabilities ( KEV ) catalog, officially confirming the vulnerability has been weaponized in the wild. The shortcoming in question is CVE-2025-5777 (CVSS score: 9.3), an instance of insufficient input validation that could be exploited by an attacker to bypass authentication when the appliance is configured as a Gateway or AAA virtual server. It's also called Citrix Bleed 2 owing to its similarities with Citrix Bleed (CVE-2023-4966). "Citrix NetScaler ADC and Gateway contain an out-of-bounds read vulnerability due to insufficient input validation," the agency said. "This vulnerability can lead to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server." CISA pointed out that flaws like CVE-2025-5777 are f...

Microsoft has released its monthly Patch Tuesday update including a total of 10 security bulletin, and you are required to apply the whole package of patches altogether, whether you like it or not. That's because the company is kicking off a controversial new all-or-nothing patch model this month by packaging all security updates into a single payload, removing your ability to pick and choose which individual patches to install. October's patch bundle includes fixes for at least 5 separate dangerous zero-day vulnerabilities in Internet Explorer, Edge, Windows and Office products that attackers were already exploiting in the wild before the patch release. The patches for these zero-day flaws are included in MS16-118, MS16-119, MS16-120, MS16-121 and MS16-126. All the zero-days are being exploited in the wild, allowing attackers to execute a remote command on victim's system. Although none of the zero-day flaws were publicly disclosed prior to Tuesday, the company wa...

A high-severity security flaw has been disclosed in ServiceNow's platform that, if successfully exploited, could result in data exposure and exfiltration. The vulnerability, tracked as CVE-2025-3648 (CVSS score: 8.2), has been described as a case of data inference in Now Platform through conditional access control list (ACL) rules. It has been codenamed Count(er) Strike . "A vulnerability has been identified in the Now Platform that could result in data being inferred without authorization," ServiceNow said in a bulletin. "Under certain conditional access control list (ACL) configurations, this vulnerability could enable unauthenticated and authenticated users to use range query requests to infer instance data that is not intended to be accessible to them." Cybersecurity company Varonis, which discovered and reported the flaw in February 2024, said it could have been exploited by malicious actors to obtain unauthorized access to sensitive information, inclu...

For the first time in 2025, Microsoft's Patch Tuesday updates did not bundle fixes for exploited security vulnerabilities, but the company acknowledged one of the addressed flaws had been publicly known. The patches resolve a whopping 130 vulnerabilities , along with 10 other non-Microsoft CVEs that affect Visual Studio, AMD, and its Chromium-based Edge browser. Of these, 10 are rated Critical and the remaining are all rated Important in severity. "The 11-month streak of patching at least one zero-day that was exploited in the wild ended this month," Satnam Narang, Senior Staff Research Engineer at Tenable, said. Fifty-three of these shortcomings are classified as privilege escalation bugs followed by 42 as remote code execution, 17 as information disclosure, and 8 as security feature bypasses. These patches are in addition to two other flaws addressed by the company in the Edge browser since the release of last month's Patch Tuesday update . The vulnerability ...

A cross-site scripting (XSS) vulnerability in a virtual tour framework has been weaponized by malicious actors to inject malicious scripts across hundreds of websites with the goal of manipulating search results and fueling a spam ads campaign at scale. Security researcher Oleg Zaytsev, in a report shared with The Hacker News, said the campaign – dubbed 360XSS – affected over 350 websites, including government portals, U.S. state government sites, American universities, major hotel chains, news outlets, car dealerships, and several Fortune 500 companies. "This wasn't just a spam operation," the researcher said . "It was an industrial-scale abuse of trusted domains." All these websites have one thing in common: A popular framework called Krpano that's used to embed 360° images and videos to facilitate interactive virtual tours and VR experiences.  Zaytsev said he stumbled upon the campaign after coming across a pornography-related ad listed on Google ...

Cybersecurity researchers have warned of a new spear-phishing campaign that uses a legitimate remote access tool called Netbird to target Chief Financial Officers (CFOs) and financial executives at banks, energy companies, insurers, and investment firms across Europe, Africa, Canada, the Middle East, and South Asia.  "In what appears to be a multi-stage phishing operation, the attackers aimed to deploy NetBird, a legitimate wireguard-based remote access tool on the victim's computer," Trellix researcher Srini Seethapathy said in an analysis. The activity, first detected by the cybersecurity company in mid-May 2025, has not been attributed to a known threat actor or group. The starting point of the attack is a phishing email that impersonates a recruiter from Rothschild & Co. and claims to offer a "strategic opportunity" with the company. The email is designed to entice the recipients into opening a purported PDF attachment that, in reality, is a phishin...