In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939_session_fresh_new(): initialize receive…
CVE-2026-80707 · published 28 Aug 2026
How serious is it
- Severity: high, CVSS score 7.5 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-80707?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 5.4
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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]
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269
- git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0
- git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832
- git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9
- git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44
- git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf
- git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719
- git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751
Merged from NVD. Last updated 24 Oct 2026. All vulnerabilities · RSS · JSON