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CVE-2015-4481

19
FAUCET Score

CVE-2015-4481 is a race condition vulnerability in the Mozilla Maintenance Service, affecting Mozilla Firefox on Windows, including Firefox ESR. This flaw allows a local attacker to achieve arbitrary file write and privilege escalation by manipulating hard links to log files during an update process. The vulnerability has a CVSS score of 3.3, indicating low attack complexity and local access, with potential for partial integrity and availability impact. While not listed on CISA's KEV catalog and with no recorded active exploitation, a proof-of-concept exploit is available on ExploitDB, though it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 39.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
38.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*
38.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*
38.0.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*
38.1.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:L/AC:M/Au:N/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-37925 · Aug 21, 2015
This CVE's current EPSS score of 0.0080 is in the 95th percentile among its peer group of 747 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

lists.opensuse.org / opensuse-security-announce/2015-08/msg00014.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-08/msg00015.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2015-08/msg00030.html
lists.opensuse.org / opensuse-updates/2015-08/msg00031.html
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
security.gentoo.org / glsa/201605-06
exploit-db.com / exploits/37925
mozilla.org / security/announce/2015/mfsa2015-84.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
securitytracker.com / id/1033247
securitytracker.com / id/1033372