CVE-2026-6678
wolfssl: Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length hand...
CVE-2026-6678 is fixed in wolfssl on 1 platform, first by DEBIAN-CVE-2026-6678, released July 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0033
26th percentile
Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| wolfssl · Debian 12.15 (bookworm) | 5.5.4-2+deb12u3 | DEBIAN-CVE-2026-6678 | Jul 18, 2026 |
| wolfssl · Debian 13.5 (trixie) | 5.7.2-0.1+deb13u2 | DEBIAN-CVE-2026-6678 | Jul 18, 2026 |
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