maintenservice_installer.exe in the Maintenance Service Installer in Mozilla Firefox…
Priority LOW 31CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-269.
Summary
maintenservice_installer.exe in the Maintenance Service Installer in Mozilla Firefox before 29.0 and Firefox ESR 24.x before 24.5 on Windows allows local users to gain privileges by placing a Trojan horse DLL file into a temporary directory at an unspecified point in the update process.
Why it matters now
EPSS 0.00408 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 29.0; 24.0 to before 24.5 | Vulnerable | Mozilla |
| cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* | 19 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* | 20 | Vulnerable | Fedoraproject |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 29.0; 24.0 to before 24.5 Vulnerable ·Mozilla
- cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* Versions 19 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-1520
- 2026-10-03 Alias added: GHSA-f8rp-8hgw-hrhp
References
Advisory 7
- FEDORA-2014-5833
- GLSA-201504-01
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.mozilla.org/security/announce/2014/mfsa2014-35.html
- FEDORA-2014-5829
- 20210308 Unholy CRAP: Moziila's executable installers
- http://packetstormsecurity.com/files/161696/Mozilla-Arbitrary-Code-Execution-Privilege-Escalation.html
Sources
- CVE-2014-1520 · CVE Program
- CVE-2014-1520 · NVD
- FIRST EPSS
- GHSA-f8rp-8hgw-hrhp · GitHub Advisory Database · CC BY 4.0
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