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CVE-2022-26522 is a local privilege escalation vulnerability in the Avast and AVG Windows Anti Rootkit driver aswArPot.sys before version 22.1. The flaw resides in the socket connection handler at aswArPot+0xc4a3 and is described as a double-fetch race condition involving PPEB->ProcessParameters->CommandLine.Length. The driver fetches a user-controlled length value more than once without ensuring it remains stable, allowing an attacker to race a kernel thread and modify the CommandLine.Length field between accesses. By triggering the vulnerable path via a socket connection, a local attacker can induce memory corruption in kernel context, leading to arbitrary code execution in kernel mode or a system crash.
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No public exploit code observed for this vulnerability.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A privilege escalation vulnerability in Avast's aswArPot.sys anti-rootkit driver related to improper validation of user input.
A high-severity local privilege escalation vulnerability in Avast/AVG's Anti Rootkit driver (aswArPot.sys) caused by a double-fetch issue on a user-controlled command line length field, potentially allowing kernel code execution from a non-administrator user.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.