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CVE-2015-8511

Race condition in the lockscreen feature in Mozilla Firefox OS before 2.5 allows physically...

6.4 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.20%Down 0.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 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.

Record
CVE-2015-8511
CVSS 3.0
6.4 MediumCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.9 MediumAV:L/AC:M/Au:N/C:C/I:C/A:C
Weakness
CWE-362
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2015-8511
Updated
2026-11-02
EUVDEUVD-2015-8392 No score

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.

Record
EUVD-2015-8392
Updated
2026-11-03
GitHub AdvisoriesGHSA-r3qp-23xx-vphj 6.4

Race condition in the lockscreen feature in Mozilla Firefox OS before 2.5 allows physically...

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.

Record
GHSA-r3qp-23xx-vphj
CVSS 3.0
6.4 MediumCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-362
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-8511 is a medium vulnerability (CVSS 6.4) in Mozilla Firefox Os, published January 9, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. No source names a fixed version.

References

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