CVE-2026-80707can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer
- 7.5HighCVSS base score
- 0.33%Exploitation in 30 daysEPSS · top 74% 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: j1939: transport: j1939_session_fresh_new(): initialize receive buffer Zero the allocated buffer in j1939_session_fresh_new() to ensure it contains no residual data. While there is a potential performance impact if users allocate maximum sized ETP buffers, most real-world use cases are not noticeably affected since the maximum known buffer size is typically around 65K. [mkl: add Message-ID]
Timeline
ID reserved
By Linux
- 2 days later
· 2 days later
Published
- 49 days later
· 49 days 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Received | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 348818277a3646d5b9fa60c9d20c00dc4bc86832
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < f3e120a34b336079479fa10f706f0636eaa6e751
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < bbfa49d1e287de44994955b44d19281be3195b44
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 194d67e92197eb820f4c2c6605d9721333b3eba0
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 038bad8e16c2e28acf31f0b527a816fb23a57269
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 8604a3b81b9d0ceaf04fee5f52e701f623a179f9
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < eb96c58907922546e415e545fe9a14ea63b02719
- affected 5.4
- unaffected < 5.4
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832 (opens in a new tab)
- https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751 (opens in a new tab)
- https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44 (opens in a new tab)
- https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0 (opens in a new tab)
- https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269 (opens in a new tab)
- https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9 (opens in a new tab)
- https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf (opens in a new tab)
- https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719 (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-2026-67442 (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-2026-80707)Record last updated .