Critical vulnerabilities can let attackers bypass security controls, compromise systems, or steal data, requiring urgent risk assessment and remediation.
Search across headline titles and summaries.
Background for this topic.
A critical vulnerability is a software or hardware flaw that allows attackers to execute highly damaging actions, such as remote code execution or privilege escalation, with little or no user interaction. These vulnerabilities often affect core system components or widely used services, making them attractive targets for exploitation. The severity rating "critical" indicates that successful exploitation can lead to full system compromise or significant operational disruption.
Security practitioners must prioritize identifying and patching critical vulnerabilities promptly to reduce exposure to automated attacks and wormable exploits. Effective mitigation includes applying vendor patches, deploying intrusion detection systems tuned for exploit patterns, and restricting network access to vulnerable services. Understanding the exploitability and impact scope of a critical vulnerability helps allocate resources efficiently and maintain system integrity under active threat conditions.
Weekly headline count for the current query.
Attackers appear to have reverse-engineered Big Red's patch
Remote, unauthenticated RCE with root privileges is about as bad as it gets
Critical flaw payouts slashed by more than 75%
Emergency patches out now for those managing the millions of domains assumed to be affected Emergency patches are available for a critical vulnerability in cPanel and WHM that allows attackers to bypass authentication and gain root access to servers managed using it.…
No reports of active exploitation (yet) Watch out for more Fortinet vulns! Two critical bugs in Fortinet's sandbox could allow unauthenticated attackers to bypass authentication or execute unauthorized code on vulnerable systems.…
Rust security maintainers contend Nadim Kobeissi's vulnerability claims are too much Updated Since February, cryptographer Nadim Kobeissi has been trying to get code fixes applied to Rust cryptography libraries to address what he says are critical bugs. For his efforts, he's been dismissed, ignored, and banned from Rust security channels.…
Patch meant to close a severe expression bug fails to stop attackers with workflow access Multiple newly disclosed bugs in the popular workflow automation tool n8n could allow attackers to hijack servers, steal credentials, and quietly disrupt AI-driven business processes.…
Too slow react-ion time Baddies are exploiting a critical bug in React Native's Metro development server to deliver malware to both Windows and Linux machines, and yet the in-the-wild attacks still haven't received the "broad public acknowledgement" that they should, according to security researchers.…
More work for admins on the cards as they await a full dump of fixes Things aren't over yet for Fortinet customers – the security shop has disclosed yet another critical FortiCloud SSO vulnerability.…
Critical vuln flew under the radar for a decade A recently disclosed critical vulnerability in the GNU InetUtils telnet daemon (telnetd) is "trivial" to exploit, experts say.…
Jacob Riggs is set to swap London for Sydney some time in the next year A British security researcher has secured Australia's strictest, invite-only visa after discovering a critical vulnerability in a government system.…
Attackers may be joining the dots to enable unauthenticated RCE Fortinet has confirmed that another flaw in its FortiWeb web application firewall has been exploited as a zero-day and issued a patch, just days after disclosing a critical bug in the same product that attackers had found and abused a month earlier.…
Plus 2 new critical vulns - patch now Cisco warned customers about another wave of attacks against its firewalls, which have been battered by intruders for at least six months. It also patched two critical bugs in its Unified Contact Center Express (UCCX) software that aren't under active exploitation - yet.…
You didn't have plans, did you? Microsoft has released an out-of-band update to patch a critical vulnerability in Windows Server Update Services (WSUS).…
Bill Cassidy letter asks if Switchzilla sat on critical flaws before feds were forced into emergency patching US Senator Bill Cassidy has fired off a pointed letter to Cisco over the firewall flaws that allegedly let hackers breach "at least one federal agency."…
Rapid7 warns flaw could let any app peek at your SMS, but smartphone vendor won't pick up Security researchers report that OnePlus smartphone users remain vulnerable to a critical bug that allows any application to read SMS and MMS data — a flaw that has persisted since late 2021.…
A similar vuln on Apple devices was used against 'specific targeted users' Samsung has fixed a critical flaw that affects its Android devices - but not before attackers found and exploited the bug, which could allow remote code execution on affected devices.…
Burger slinger gets a McRibbing, reacts by firing staffer who helped A white-hat hacker has discovered a series of critical flaws in McDonald's staff and partner portals that allowed anyone to order free food online, get admin rights to the burger slinger's marketing materials, and could allow an attacker to get a corporate email account with which to conduct a little filet-o-phishing.…
Intruders hoped no one would notice their presence Criminals exploiting a critical vulnerability in open source Apache ActiveMQ middleware are fixing the flaw that allowed them access, after establishing persistence on Linux servers.…
If there's smoke? Fortinet warned customers about a critical FortiSIEM bug that could allow an unauthenticated attacker to execute unauthorized commands, and said working exploit code for the flaw has been found in the wild.…