The WebSockets implementation in Mozilla Firefox 4 through 4.0 Beta 7 does not properly…
Priority MEDIUM 45Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The WebSockets implementation in Mozilla Firefox 4 through 4.0 Beta 7 does not properly perform proxy upgrade negotiation, which has unspecified impact and remote attack vectors, related to an "inherent problem" with the WebSocket specification.
Why it matters now
EPSS 0.01274 70th percentileScored 2026-11-07
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:* | 4.0 beta1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:4.0:beta2:*:*:*:*:*:* | 4.0 beta2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:4.0:beta3:*:*:*:*:*:* | 4.0 beta3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:4.0:beta4:*:*:*:*:*:* | 4.0 beta4 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:4.0:beta5:*:*:*:*:*:* | 4.0 beta5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:4.0:beta6:*:*:*:*:*:* | 4.0 beta6 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:* Versions 4.0 beta1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:4.0:beta2:*:*:*:*:*:* Versions 4.0 beta2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:4.0:beta3:*:*:*:*:*:* Versions 4.0 beta3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:4.0:beta4:*:*:*:*:*:* Versions 4.0 beta4 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:4.0:beta5:*:*:*:*:*:* Versions 4.0 beta5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:4.0:beta6:*:*:*:*:*:* Versions 4.0 beta6 Vulnerable ·Mozilla
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4508
- 2026-10-03 Alias added: GHSA-3pfw-5mj7-cxfg
References
More Mozilla Firefox vulnerabilities
- TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
- TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2010-4508 · CVE Program
- CVE-2010-4508 · NVD
- FIRST EPSS
- GHSA-3pfw-5mj7-cxfg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences