CVE-2026-6681
Fixed in a distro release EPSS <1%CVSS 1.0
The PKCS#7 decode path ignores the caller-supplied output buffer size (outputSz), allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release.
Products: wolfssl
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | wolfssl | 5.5.4-2+deb12u3 |
| Debian 13 | wolfssl | 5.7.2-0.1+deb13u2 |
| Ubuntu 16.04 LTS | wolfssl | no fix |
| Ubuntu 18.04 LTS | wolfssl | no fix |
| Ubuntu 20.04 LTS | wolfssl | no fix |
| Ubuntu 22.04 LTS | wolfssl | no fix |
| Ubuntu 24.04 LTS | wolfssl | no fix |
| Ubuntu 25.10 | wolfssl | no fix |