CVE-2015-8511

MEDIUMNVD 6.46.4—

6.4

Race condition in the lockscreen feature in Mozilla Firefox OS before 2.5 allows physically proximate attackers to bypass an intended passcode requirement via unspecified vectors.

CVSS v3: 6.4
EG Score: 6.4(medium)
EPSS: 11.1%
KEV: Not listed

Published

January 9, 2016

Last Modified

May 6, 2026

References (4)

security@mozillahttp://www.mozilla.org/security/announce/2015/mfsa2015-152.html
security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1173284
af854a3a-2127-422b-91ae-364da2661108http://www.mozilla.org/security/announce/2015/mfsa2015-152.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1173284

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-8511?

CVE-2015-8511 is a medium vulnerability published on January 9, 2016. Race condition in the lockscreen feature in Mozilla Firefox OS before 2.5 allows physically proximate attackers to bypass an intended passcode requirement via unspecified vectors.

When was CVE-2015-8511 disclosed?

CVE-2015-8511 was first published in the National Vulnerability Database on January 9, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-8511 actively exploited?

CVE-2015-8511 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-8511?

CVE-2015-8511 has a CVSS v3 base score of 6.4 (NVD).

How do I remediate CVE-2015-8511?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8511, 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-2015-8511

📅 Published

🔄 Last Modified

🔗 References (4)