Vulnerabilities are flaws attackers can exploit to access systems or data; timely patching, isolation, and least privilege reduce the impact.
Search across headline titles and summaries.
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.
Cisco has patched a denial of service (DoS) vulnerability that lets attackers crash the Border Gateway Protocol (BGP) process on IOS XR routers with a single BGP update message. [...]
A new ransomware operator named 'Mora_001' is exploiting two Fortinet vulnerabilities to gain unauthorized access to firewall appliances and deploy a custom ransomware strain dubbed SuperBlack. [...]
Juniper Networks has released emergency security updates to patch a Junos OS vulnerability exploited by Chinese hackers to backdoor routers for stealthy access. [...]
GitLab released security updates for Community Edition (CE) and Enterprise Edition (EE), fixing nine vulnerabilities, among which two critical severity ruby-saml library authentication bypass flaws. [...]
Facebook is warning that a FreeType vulnerability in all versions up to 2.13 can lead to arbitrary code execution, with reports that the flaw has been exploited in attacks. [...]
Slovak cybersecurity company ESET says a newly patched zero-day vulnerability in the Windows Win32 Kernel Subsystem has been exploited in attacks since March 2023. [...]
Today is Microsoft's March 2025 Patch Tuesday, which includes security updates for 57 flaws, including six actively exploited zero-day vulnerabilities. [...]
Microsoft has released Windows 11 KB5053598 and KB5053602 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues. [...]
Threat intelligence company GreyNoise warns that a critical PHP remote code execution vulnerability that impacts Windows systems is now under mass exploitation. [...]
CISA warned U.S. federal agencies to secure their networks against attacks exploiting three critical vulnerabilities affecting Ivanti Endpoint Manager (EPM) appliances. [...]
Google paid almost $12 million in bug bounty rewards to 660 security researchers who reported security bugs through the company's Vulnerability Reward Program (VRP) in 2024. [...]