CVE-2025-37846: Linux kernel · Out-of-bounds Read
Source GCVE Database
Not known to be exploited · CVSS 7.1 Low.
Data as of 13 Nov 2026, 19:21 UTC
Thin evidence
One scorer or noneCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
AI-suggested
A fix for this vulnerability has been implemented in the Linux kernel source code (commit 2de451a329cf662b). Users and administrators should apply the official Linux kernel updates that include this commit to remediate the issue. Since this is a kernel-level vulnerability, upgrading to a patched kernel version is the recommended mitigation. No alternative workarounds or temporary fixes are indicated.
Description
CVE-2025-37846 is a high-severity vulnerability in the Linux kernel's arm64 architecture related to the MOPS (Memory Operations) handler. The flaw involves dereferencing a source register during a SET operation, which can cause an out-of-bounds array access error under certain conditions. Specifically, when the MOPS exception is triggered from a SET* sequence with the XZR register (register 31) as the source, the kernel code incorrectly reads this register, leading to undefined behavior. This issue was benign before a certain commit due to protective code, but the vulnerability has since been addressed.
References
- nvd.nist.gov/vuln/detail/CVE-2025-37846 (opens in a new tab)
- git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5 (opens in a new tab)
- git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786 (opens in a new tab)
- git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113 (opens in a new tab)
- git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17 (opens in a new tab)