Vulnerabilities are flaws attackers can exploit to access systems or data; timely patching, isolation, and least privilege reduce the impact.
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Background for this topic.
A vulnerability is a weakness in a system’s design, code, configuration, or operating process that could allow an attacker to violate a security requirement. It may affect software, hardware, networks, cloud services, or exposed interfaces, and is not automatically exploitable: practical risk depends on factors such as exposure, required privileges, available attack paths, and existing controls. Outcomes can include unauthorized access, information disclosure, code execution, or disruption of service.
Effective vulnerability management combines accurate asset inventory with code review, security testing, scanning, and trusted vulnerability intelligence. Organizations should prioritize weaknesses affecting reachable, business-critical systems—especially when exploitation is known or requires little access—then patch or otherwise mitigate them and verify the fix. Where patching is delayed, controls such as disabling an exposed feature, restricting network access, or strengthening authentication can reduce the attack surface. Records should preserve affected versions, risk decisions, remediation owners, and validation results.
The notorious North Korean hacking group 'Lazarus' was seen installing a Windows rootkit that abuses a Dell hardware driver in a Bring Your Own Vulnerable Driver attack. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a recently disclosed critical flaw impacting Atlassian's Bitbucket Server and Data Center to the Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation
While ransomware seems stalled, business email compromise (BEC) attacks continue to make profits from the ProxyShell and Log4j vulnerabilities, nearly doubling in the latest quarter.
Microsoft Corp. is investigating reports that attackers are exploiting two previously unknown vulnerabilities in Exchange Server, a technology many organizations rely on to send and receive email. Microsoft says it is expediting work on software patches to plug the security holes. In the meantime, it is urging a subset of Exchange customers to enable a setting that could help mitigate ongoing attacks.
The "ProxyNotShell" security vulnerabilities can be chained for remote code execution and total takeover of corporate email platforms.
The SolarMarker group is exploiting a vulnerable WordPress-run website to encourage victims to download fake Chrome browser updates, part of a new tactic in its watering-hole attacks.
The vulnerabilities were first discovered by Vietnamese cybersecurity firm GTSC
Reports to the National Vulnerability Database jumped in 2022, but we should pay just as much attention to the flaws that are not being reported to NVD, including those affecting the software supply chain.
Endpoint devices like desktops, laptops, and mobile phones enable users to connect to enterprise networks and use their resources for their day-to-day work. However, they also expand the attack surface and make the organisation vulnerable to malicious cyberattacks and data breaches
The liability rules allow for compensation for damage when manufacturers fail to address cybersecurity vulnerabilities
Microsoft officially disclosed it investigating two zero-day security vulnerabilities impacting Exchange Server 2013, 2016, and 2019 following reports of in-the-wild exploitation
Microsoft has confirmed that two recently reported zero-day vulnerabilities in Microsoft Exchange Server 2013, 2016, and 2019 are being exploited in the wild. [...]
Cloud configuration errors are a major concern for modern DevOps teams, introducing a new attack surface with numerous potential points of vulnerability. Read on to discover some of the most common errors and learn how to resolve them.
Matrix decentralized communication platform has published a security warning about two critical-severity vulnerabilities that affect the end-to-end encryption in the software development kit (SDK). [...]
APT group Witchetty (aka LookingFrog) has exploited the ProxyShell and ProxyLogon vulnerabilities to gain initial access and deploy new custom cyber tools against government agencies and a stock exchange.
You take the green pill, and you'll spend six hours in a 'don't roll your own crypto' debate Four security researchers have identified five cryptographic vulnerabilities in code libraries that can be exploited to undermine the Matrix federated communication protocol and its client software. This includes impersonating users and sending messages as them.…
Cloud-native threats are costing cloud customer victims money as cryptojackers mine their vulnerable cloud instances.
Four vulnerabilities in the widely adopted 'Stacked VLAN' Ethernet feature allows attackers to perform denial-of-service (DoS) or man-in-the-middle (MitM) attacks against network targets using custom-crafted packets. [...]
Defend against phishing attacks with more than user training. Measure users' suspicion levels along with cognitive and behavioral factors, then build a risk index and use the information to better protect those who are most vulnerable.
Vulnerable configurations, software flaws, and exposed Web services allow hackers to find exploitable weaknesses in companies' perimeters in just hours, not days.