linux privilege escalation

  1. CVE-2026-4878 libcap TOCTOU Privilege Escalation & Availability Impact

    CVE-2026-4878 in libcap is a local privilege-escalation flaw rooted in a TOCTOU race condition inside cap_set_file(), and Microsoft’s Security Update Guide classifies the downstream impact as serious enough to include high availability loss in its risk framing. The core concern is that a local...
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    • cve-2026-4878 libcap vulnerability linux privilege escalation toctou race condition
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    • Forum: Security Alerts

  2. CVE-2026-23268 AppArmor Flaw Lets Unprivileged Users Do Privileged Policy Management

    AppArmor is back in the spotlight, and this time the concern is not a subtle policy quirk but a path that reportedly lets an unprivileged local user reach privileged policy management. The issue behind CVE-2026-23268 matters because AppArmor sits at the heart of Linux containment for desktops...
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    • apparmor security cve-2026-23268 linux privilege escalation security hardening
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    • Forum: Security Alerts