What is CVE-2012-1316?

CVE-2012-1316 is a medium-severity vulnerability in Cisco Ironport Web Security Appliance, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2020-01-15.

How severe is CVE-2012-1316?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Cisco Ironport Web Security Appliance

CVE-2012-1316

Cisco IronPort Web Security Appliance does not check for certificate revocation which could lead to MITM attacks

Vulnerability class: Improper Certificate Validation

Published 2020-01-15 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.5th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Cisco Ironport Web Security Appliance — versions through at least 2012-04-11
Cisco Ironport Web Security Appliance

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

www.securityfocus.com/bid/52981 (VDB Entry, Third Party Advisory)
www.secureworks.com/research/transitive-trust (Third Party Advisory)

Frequently asked questions

What is CVE-2012-1316?: CVE-2012-1316 is a medium-severity vulnerability in Cisco Ironport Web Security Appliance, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2020-01-15.
How severe is CVE-2012-1316?: Medium severity. CVSS v3 base score is 5.9 out of 10.