CVE-2011-2669

MEDIUMNVD 6.56.5—

6.5

Mozilla Firefox prior to 3.6 has a DoS vulnerability due to an issue in the validation of certificates.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 33.1%
KEV: Not listed

Published

January 21, 2020

Last Modified

November 21, 2024

References (2)

vultures@jpcerthttp://jvn.jp/en/jp/JVN70984231/index.html
af854a3a-2127-422b-91ae-364da2661108http://jvn.jp/en/jp/JVN70984231/index.html

Weakness Classification(1)

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

CWE-295Improper Certificate Validation

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
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 08:53 UTCEG score recompute
2026-05-27 08:53 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Frequently asked(5)

What is CVE-2011-2669?

CVE-2011-2669 is a medium vulnerability published on January 21, 2020. Mozilla Firefox prior to 3.6 has a DoS vulnerability due to an issue in the validation of certificates.

When was CVE-2011-2669 disclosed?

CVE-2011-2669 was first published in the National Vulnerability Database on January 21, 2020, 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-2011-2669 actively exploited?

CVE-2011-2669 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-2669?

CVE-2011-2669 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2011-2669?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-2669, 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.

Dependency Blast Radius

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CVE-2011-2669

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-2669?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)