Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Firefox | before 112 | 112 | Patch available | CNA |
| Mozilla | Firefox ESR | before 102.10 | 102.10 | Patch available | CNA |
| Mozilla | Thunderbird | before 102.10 | 102.10 | Patch available | CNA |
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 112
- Fix · CNA Firefox ESR (Mozilla) Fixed in 102.10
- Fix · CNA Thunderbird (Mozilla) Fixed in 102.10
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox, Firefox ESR, Thunderbird 102.10, 112
4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2023-13910 A newline in a filename could have been used to bypass the file extension security…Priority MEDIUM 51
- TI-2023-13899 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
- TI-2023-13900 A local attacker can trick the Mozilla Maintenance Service into applying an unsigned…Priority LOW 24
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-29545
- 2026-10-03 Alias added: GHSA-xhrg-vc2x-xrcj
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-2023-29545 · CVE Program
- CVE-2023-29545 · NVD
- FIRST EPSS
- GHSA-xhrg-vc2x-xrcj · GitHub Advisory Database · CC BY 4.0
- CVE-2023-29545 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences