CVE-2023-4050
HIGHCVSS 7.5/10EPSS 13.69%
Last modified
CVE-2023-4050 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. EPSS estimates a 13.69% chance of exploitation in the next 30 days.
Description
In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 116.0 |
| Mozilla | Firefox | >= 102.0, < 102.14 |
| Mozilla | Firefox | >= 115.0, < 115.1 |
| Debian | Debian Linux | 11.0 |
| Debian | Debian Linux | 12.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843038Issue Tracking, Permissions Required
- https://www.debian.org/security/2023/dsa-5464Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843038Issue Tracking, Permissions Required
- https://www.debian.org/security/2023/dsa-5464Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-4050?
In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
How severe is CVE-2023-4050?
CVE-2023-4050 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 13.69% probability of exploitation in the next 30 days.
How do I fix CVE-2023-4050?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-4050?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST