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CVE-2016-5295
This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service…
High7.8EPSS 0.32%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service invoke the Mozilla Updater to run malicious local files. This vulnerability requires local system access and is a variant of MFSA2013-44. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox < 50.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.32% · top 75% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
- Mozilla Maintenance Service: Ability to read arbitrary files as SYSTEM
- CWE-264 (opens in a new tab)
Affected products
Mozilla · Firefox
- affected unspecified – < 50
References (5)
- 94337 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://www.mozilla.org/en-US/security/advisories/mfsa2013-44/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1037298 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://www.mozilla.org/security/advisories/mfsa2016-89/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247239 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .