VulnerabilityPublished 22 Aug 2025Updated 5 Nov 2026

CVE-2025-38645: Linux kernel · net/mlx5: Check device memory pointer before usage

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in eebb225fe6c9103293807b8edabcbad59f9589bc : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in eebb225fe6c9103293807b8edabcbad59f9589bc, da899a1fd7c40e2e4302af1db7d0b8540fb22283, 9053a69abfb5680c2a95292b96df5d204bc0776f +4

Exploitation evidence

Disclosed: evidence found.
CVE published 22 Aug 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 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < eebb225fe6c9103293807b8edabcbad59f9589bc	Fixed in eebb225fe6c9103293807b8edabcbad59f9589bc
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < da899a1fd7c40e2e4302af1db7d0b8540fb22283	Fixed in da899a1fd7c40e2e4302af1db7d0b8540fb22283
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < 9053a69abfb5680c2a95292b96df5d204bc0776f	Fixed in 9053a69abfb5680c2a95292b96df5d204bc0776f
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < 4249f1307932f1b6bbb8b7eba60d82f0b7e44430	Fixed in 4249f1307932f1b6bbb8b7eba60d82f0b7e44430
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < 3046b011d368162b1b9ca9453eee0fea930e0a93	Fixed in 3046b011d368162b1b9ca9453eee0fea930e0a93
LinuxLinux	Affected ≥ c9b9dcb430b3cd0ad2b04c360c4e528d73430481, < 70f238c902b8c0461ae6fbb8d1a0bbddc4350eea	Fixed in 70f238c902b8c0461ae6fbb8d1a0bbddc4350eea

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Check device memory pointer before usage Add a NULL check before accessing device memory to prevent a crash if dev->dm allocation in mlx5_init_once() fails.

References

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