The privilege escalation vulnerability, which is similar to other Linux flaws like Copy Fail and Dirty Pipe, may already be under limited exploitation.
Tag: “Copy
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Dirty Frag: Unpatched Linux vulnerability delivers root access
A week after Copy Fail, another Linux local privilege escalation vulnerability dubbed “Dirty Frag” has been revealed, along with a PoC exploit. What is Dirty Frag In effect, Dirty Frag refers to two flaws: A xfrm-ESP Page-Cache Write vulnerability (CVE-2026-43284, aka Copy Fail 2.0), now patched in the Linux kernel, affects the modules supporting one…
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Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag, (Fri, May 8th)
Less than two weeks after the public disclosure of the Copy Fail vulnerability (CVE-2026-31431), another local privilege escalation (LPE) vulnerability in the Linux kernel has been revealed. Referred to as “Dirty Frag,” this vulnerability was discovered and reported by Hyunwoo Kim (@v4bel) [1]. In this diary, I will provide a brief background on Dirty Frag,…
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Proof-of-concept exploit available for Linux ‘Copy Fail’ vulnerability (CVE-2026-31431)
Categories: Threat Research Tags: advisory, Linux, Copy Fail
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Copy Fail: New Linux bug enables Root via page‑cache corruption
Linux flaw CVE‑2026‑31431, ‘Copy Fail,’ lets any local user write four bytes into page cache files, enabling easy escalation to root on major distros. Xint Code researchers warn of a serious Linux flaw, tracked as CVE-2026-31431 (CVSS score of 7.8), dubbed Copy Fail. It lets any local, unprivileged user write four controlled bytes into the…
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New Linux ‘Copy Fail’ flaw gives hackers root on major distros
An exploit has been published for a local privilege escalation vulnerability dubbed “Copy Fail” that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. […]
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9-Year-Old Linux Kernel Vulnerability “Copy Fail” Enables Full Root Access
Linux Kernel Vulnerability “Copy Fail” lets attackers gain root access via memory flaw. Patch now or disable algif_aead to stay secure.