What is CVE-2012-1326?

CVE-2012-1326 is a high-severity vulnerability in Cisco Ironport Web Security Appliance, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2020-01-15.

How severe is CVE-2012-1326?

High severity. CVSS v3 base score is 7.4 out of 10.

Improper input validation in Cisco Ironport Web Security Appliance

CVE-2012-1326

Cisco IronPort Web Security Appliance up to and including 7.5 does not validate the basic constraints of the certificate authority which could lead to MITM attacks

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

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

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.6th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Cisco Ironport Web Security Appliance — versions <= 7.5
Cisco Ironport Web Security Appliance

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securityfocus.com/bid/52981 (VDB Entry, Third Party Advisory)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20120412… (Vendor Advisory)

Frequently asked questions

What is CVE-2012-1326?: CVE-2012-1326 is a high-severity vulnerability in Cisco Ironport Web Security Appliance, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2020-01-15.
How severe is CVE-2012-1326?: High severity. CVSS v3 base score is 7.4 out of 10.