What is CVE-2026-1005?

CVE-2026-1005 is a medium-severity vulnerability in Wolfssl, classified under Integer Underflow. CVSS score: 5.3/10. Published 2026-03-19.

How severe is CVE-2026-1005?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Integer overflow in Wolfssl

CVE-2026-1005

Integer underflow in wolfSSL packet sniffer <= 5.8.4 allows an attacker to cause a buffer overflow in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by ssl_Dec…

EPSS: 0.001 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Wolfssl — versions 0

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

facts@wolfssl.com (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-1005?: CVE-2026-1005 is a medium-severity vulnerability in Wolfssl, classified under Integer Underflow. CVSS score: 5.3/10. Published 2026-03-19.
How severe is CVE-2026-1005?: Medium severity. CVSS v3 base score is 5.3 out of 10.