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ZDI-26-687: Linux Kernel Open vSwitch Flow Delete Use-After-Free Information Disclosure Vulnerability
ZDI discloses Linux Kernel Open vSwitch use-after-free (CVE-2026-80994) letting low-privileged local attackers disclose sensitive kernel information, CVSS 6.4.
ZDI-26-687 covers a use-after-free information disclosure vulnerability in the Linux Kernel's Open vSwitch flow deletion handling, tracked as CVE-2026-80994 with a CVSS rating of 6.4. Exploitation requires the ability to execute low-privileged code on the target system. The flaw allows local attackers to disclose sensitive information from affected installations.
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2026-003: Multiple Vulnerabilities in Citrix NetScaler and Citrix ADC
Citrix NetScaler ADC and Gateway flaws enable memory information disclosure and user session mix-up; no active exploitation is observed yet.
Citrix patched CVE-2026-3055 (CVSS 9.3), an out-of-bounds read that can expose sensitive memory on systems configured as a SAML Identity Provider, and CVE-2026-4368 (CVSS 7.7), a race condition causing user session mix-up on Gateway and AAA virtual server configurations. Affected builds include NetScaler ADC and Gateway versions prior to 14.1-66.59 and 13.1-62.23. At publication there was no public evidence of active exploitation; CERT-EU recommends prioritizing internet-facing appliances, applying the Global Deny List mitigation, and terminating all sessions after patching.
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