kbrain

CVE-2012-3440

MEDIUM · CVSS 5.6EPSS 0.4%EU EUVD

A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.

Key facts

CVSS score
5.6 (v2.0)
Severity
MEDIUM
CVSS vector
AV:L/AC:H/Au:N/C:N/I:C/A:C
Weakness (CWE)
CWE-59
EPSS score
0.4% (38th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2012-3407)
Published
August 8, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3407 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • redhat / enterprise linux
  • todd miller / sudo

Certified products that may be affected

6 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

See all 6 in the Security Certifications Explorer.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain