Out-of-bounds write in Mozilla Firefox
Priority LOW 34CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A maliciously crafted favicon could have led to an out of memory crash. This vulnerability affects Firefox < 113.
Why it matters now
EPSS 0.00761 55th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 113
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 113
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 113
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2023-15515 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 43
- TI-2023-15513 Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a…Priority LOW 35
- TI-2023-15507 Service workers could reveal script base URL due to dynamic `import()`.Priority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2023-32209
- 2026-10-03 Alias added: GHSA-4m9f-p7pm-7vjm
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-2023-32209 · CVE Program
- CVE-2023-32209 · NVD
- FIRST EPSS
- GHSA-4m9f-p7pm-7vjm · GitHub Advisory Database · CC BY 4.0
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