CVE-2011-3374

LOWNVD 3.73.7—

3.7

It was found that apt-key in apt, all versions, do not correctly validate gpg keys with the master keyring, leading to a potential man-in-the-middle attack.

CVSS v3: 3.7
EG Score: 3.7(medium)
EPSS: 81.7%
KEV: Not listed

Published

November 26, 2019

Last Modified

November 21, 2024

References (14)

secalert@redhathttps://access.redhat.com/security/cve/cve-2011-3374
secalert@redhathttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642480
secalert@redhathttps://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-3374.html
secalert@redhathttps://seclists.org/fulldisclosure/2011/Sep/221
secalert@redhathttps://security-tracker.debian.org/tracker/CVE-2011-3374
secalert@redhathttps://snyk.io/vuln/SNYK-LINUX-APT-116518
secalert@redhathttps://ubuntu.com/security/CVE-2011-3374
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/cve-2011-3374
af854a3a-2127-422b-91ae-364da2661108https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642480
af854a3a-2127-422b-91ae-364da2661108https://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-3374.html
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/fulldisclosure/2011/Sep/221
af854a3a-2127-422b-91ae-364da2661108https://security-tracker.debian.org/tracker/CVE-2011-3374
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-LINUX-APT-116518
af854a3a-2127-422b-91ae-364da2661108https://ubuntu.com/security/CVE-2011-3374

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-347Improper Verification of Cryptographic Signature

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
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2026-06-01 13:49 UTCepss_batch
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2026-05-27 11:11 UTCEG score recompute
2026-05-27 11:11 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch

Frequently asked(5)

What is CVE-2011-3374?

CVE-2011-3374 is a low vulnerability published on November 26, 2019. It was found that apt-key in apt, all versions, do not correctly validate gpg keys with the master keyring, leading to a potential man-in-the-middle attack.

When was CVE-2011-3374 disclosed?

CVE-2011-3374 was first published in the National Vulnerability Database on November 26, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-3374 actively exploited?

CVE-2011-3374 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 81.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-3374?

CVE-2011-3374 has a CVSS v3 base score of 3.7 (NVD).

How do I remediate CVE-2011-3374?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3374, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2011-3374

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-3374?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (14)

Frequently asked(5)

Related CVEs(same CWE)