CVE-2026-80707
Published Aug 28, 2026
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]
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EPSS — Exploit Prediction
0.0016
Probability of exploitation
0.06%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Other References
https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269
https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0
https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832
https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9
https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44
https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf
https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719
https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751
Frequently Asked Questions
What is CVE-2026-80707? +
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]
How do I check if I'm vulnerable to CVE-2026-80707? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.