What’s Vulnerable › Vulnerabilities

CVE-2016-2826

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-06-13 · updated 2026-06-17
• Weakness: CWE-264

Description

The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.

Affected products

• Mozilla Firefox: through 46.0.1; 45.1.0, 45.1.1

References

• http://www.mozilla.org/security/announce/2016/mfsa2016-55.html
• http://www.securityfocus.com/bid/91075
• http://www.securitytracker.com/id/1036057
• https://bugzilla.mozilla.org/show_bug.cgi?id=1237219
• http://www.mozilla.org/security/announce/2016/mfsa2016-55.html
• http://www.securityfocus.com/bid/91075
• http://www.securitytracker.com/id/1036057
• https://bugzilla.mozilla.org/show_bug.cgi?id=1237219

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