CVE-2026-63957
N/AIn the Linux kernel, the following vulnerability has been resolved: USB: serial: safe_serial: fix memory corruption with small endpoint Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-63957/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-63957/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/e3a1d6eee25dc96b1d2db0ecd9d8741e92056476
- https://git.kernel.org/stable/c/c7336c0fba5c959249f3d793d33076b992ec3ee4
- https://git.kernel.org/stable/c/161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4
- https://git.kernel.org/stable/c/9b3145b3001fb24de1da72d1deb0bea70e5a078b
- https://git.kernel.org/stable/c/a550ed2117ca4709d38f713933ff924a83942e41
- https://git.kernel.org/stable/c/f793b67d41e5fab719c5a90baa77cbd2fe259517
- https://git.kernel.org/stable/c/857b3cc73f91871ae4433f8b97c4670b78f8dc96
- https://git.kernel.org/stable/c/438061ed1ad85e6743e2dce826671772d81089ec