CVE-2025-21773can: etas_es58x: fix potential NULL pointer dereference on udev->serial
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: fix potential NULL pointer dereference on udev->serial The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference. Add a check on es58x_dev->udev->serial before accessing it.
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 9f06631c3f1f0f298536443df85a6837ba4c5f5c – < 1590667a60753ee5a54871f2840ceefd4a7831fa
- affected 9f06631c3f1f0f298536443df85a6837ba4c5f5c – < 722e8e1219c8b6ac2865011fe339315d6a8d0721
- affected 9f06631c3f1f0f298536443df85a6837ba4c5f5c – < 5059ea98d7bc133903d3e47ab36df6ed11d0c95f
- affected 9f06631c3f1f0f298536443df85a6837ba4c5f5c – < a1ad2109ce41c9e3912dadd07ad8a9c640064ffb
- affected 6.2
- unaffected < 6.2
- unaffected 6.6.79 – ≤ 6.6.*
- unaffected 6.12.16 – ≤ 6.12.*
- unaffected 6.13.4 – ≤ 6.13.*
- unaffected 6.14 – ≤ *
References
References4
- https://git.kernel.org/stable/c/1590667a60753ee5a54871f2840ceefd4a7831fa (opens in a new tab)
- https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721 (opens in a new tab)
- https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f (opens in a new tab)
- https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-5137 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-21773)Record last updated .