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Dark Reading
Attackers wasted little time targeting the latest memory disclosure flaw in Citrix's NetScaler products, after researchers published a proof-of-concept exploit (PoC).
Dark Reading
The same APT hammered critical bugs in Citrix NetScaler (CVE-2025-5777) and the Cisco Identity Service Engine (CVE-2025-20337) in a sign of growing adversary interest in identity and access management systems.
Bleeping Computer
Over 3,300 Citrix NetScaler devices remain unpatched against a critical vulnerability that allows attackers to bypass authentication by hijacking user sessions, nearly two months after patches were released. [...]
The Register
Add CISA to the list The US Cybersecurity and Infrastructure Security Agency has added its weighty name to the list of parties agreeing that CVE-2025-5777, dubbed CitrixBleed 2 by one researcher, has been under exploitation and abused to hijack user sessions.…
Bleeping Computer
Researchers have released proof-of-concept (PoC) exploits for a critical Citrix NetScaler vulnerability, tracked as CVE-2025-5777 and dubbed CitrixBleed2, warning that the flaw is easily exploitable and can successfully steal user session tokens. [...]
The Register
NetScaler vendor issued a patch but otherwise, stony silence Multiple exploits are circulating for CVE-2025-5777, a critical bug in Citrix NetScaler ADC and NetScaler Gateway dubbed CitrixBleed 2, and security analysts are warning a "significant portion" of users still haven't patched.…
Dark Reading
If exploited, the critical vulnerability allows attackers to maintain access for longer periods of time than the original CitrixBleed flaw, all while remaining undetected.
Bleeping Computer
A recent vulnerability in Citrix NetScaler ADC and Gateway is dubbed "CitrixBleed 2," after its similarity to an older exploited flaw that allowed unauthenticated attackers to hijack authentication session cookies from vulnerable devices. [...]
The Register
Why are you even reading this story? Patch now! Citrix patched a critical vulnerability in its NetScaler ADC and NetScaler Gateway products that is already being compared to the infamous CitrixBleed flaw exploited by ransomware gangs and other cyber scum, although there haven't been any reports of active exploitation. Yet.…
Dark Reading
Meanwhile, CISA joins the call to patch CVE-2023-4966 immediately amid reports of mass-exploit activity; at least 5,000 orgs remain exposed.