Access Restriction Bypass Affecting torvalds/linux package, versions [4.12,5.15.216)[5.16,6.1.183)[6.2,6.6.152)[6.7,6.12.104)[6.13,6.18.45)[6.19,7.1.9)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Oct 2026
- disclosed22 Aug 2026
- creditUnknown
Introduced: 22 Aug 2026
CVE-2026-74649 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.15.216, 6.1.183, 6.6.152, 6.12.104, 6.18.45, 7.1.9 or higher.
Overview
Affected versions of this package are vulnerable to Access Restriction Bypass via the OnAuthClient function. An attacker can cause memory corruption and information disclosure by sending a crafted WLAN_EID_CHALLENGE element with an attacker-controlled length, leading to out-of-bounds writes or exposure of stale kernel memory during shared-key authentication. This is only exploitable if the device is within range of a malicious access point and is configured to use WEP shared-key authentication.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst