CVE-2025-37781: Linux kernel · NULL Pointer Dereference
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 4 Nov 2026, 18:30 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 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 4 Nov 2026.
What to do
AI-suggested
A fix for this vulnerability has been implemented in the Linux kernel. Users should update to a kernel version that includes this fix. Since no vendor advisory or patch links are provided, verify with the Linux kernel release notes or distribution updates for the official fixed version before deploying.
Description
CVE-2025-37781 is a Linux kernel vulnerability in the i2c-cros-ec-tunnel driver where a NULL pointer dereference occurs if the parent Embedded Controller (EC) device is not present. This happens when both the i2c-cros-ec-tunnel and the EC driver are built-in, or when the controller driver is unbound and the tunnel module is loaded or bound. The issue leads to a kernel crash (NULL pointer dereference).
References
- nvd.nist.gov/vuln/detail/CVE-2025-37781 (opens in a new tab)
- git.kernel.org/stable/c/092de5ac8cb2eaa9593a765fa92ba39d8173f984 (opens in a new tab)
- git.kernel.org/stable/c/1355b5ca4782be85a2ef7275e4c508f770d0fb27 (opens in a new tab)
- git.kernel.org/stable/c/3090cad5ccff8963b95160f4060068048a1e4c4c (opens in a new tab)
- git.kernel.org/stable/c/424eafe65647a8d6c690284536e711977153195a (opens in a new tab)
- git.kernel.org/stable/c/b66d4910a608427367c4e21499e149f085782df7 (opens in a new tab)
- git.kernel.org/stable/c/cd83035b6f2a102c2d5acd3bfb2a11ff967aaba6 (opens in a new tab)
- git.kernel.org/stable/c/da8edc9eb2516aface7f86be5fa6d09c0d07b9f8 (opens in a new tab)
- git.kernel.org/stable/c/e89bf1311d4497c6743f3021e9c481b16c3a41c9 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00030.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)