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CVE-2026-63957

UnknownEPSS 0.21%

Last modified

CVE-2026-63957 is a vulnerability of currently unknown severity. In 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

In 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.

Metrics

EPSS Probability
0.21%

11.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e3a1d6eee25dc96b1d2db0ecd9d8741e92056476; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c7336c0fba5c959249f3d793d33076b992ec3ee4; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9b3145b3001fb24de1da72d1deb0bea70e5a078b; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a550ed2117ca4709d38f713933ff924a83942e41; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f793b67d41e5fab719c5a90baa77cbd2fe259517; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 857b3cc73f91871ae4433f8b97c4670b78f8dc96; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 438061ed1ad85e6743e2dce826671772d81089ec
LinuxLinux2.6.12

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-63957?
In 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.
How severe is CVE-2026-63957?
Severity scoring for CVE-2026-63957 is pending analysis. The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-63957?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST