Open redirect in Mozilla Firefox
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-601.
Summary
The <code>ms-msdt</code>, <code>search</code>, and <code>search-ms</code> protocols deliver content to Microsoft applications, bypassing the browser, when a user accepts a prompt. These applications have had known vulnerabilities, exploited in the wild (although we know of none exploited through Thunderbird), so in this release Thunderbird has blocked these protocols from prompting the user to open them.<br>*This bug only affects Thunderbird on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.
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 102 | 102 | Patch available | CNA |
| Mozilla | Firefox ESR | before 91.11 | 91.11 | Patch available | CNA |
| Mozilla | Thunderbird | before 102; before 91.11 | 102, 91.11 | Patch available | CNA |
- Firefox VendorMozilla Affected before 102 Fixed in 102 Patch available CNA
- Firefox ESR VendorMozilla Affected before 91.11 Fixed in 91.11 Patch available CNA
- Thunderbird VendorMozilla Affected before 102; before 91.11 Fixed in 102, 91.11 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 102.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | before 91.11 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 91.11 | Vulnerable | Mozilla |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 102.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 91.11 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 91.11 Vulnerable ·Mozilla
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 102
- Fix · CNA Firefox ESR (Mozilla) Fixed in 91.11
- Fix · CNA Thunderbird (Mozilla) Fixed in 102, 91.11
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 102
19 records Highest priority Priority HIGH 6 HIGH, 7 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2022-15364 Use after free in Mozilla FirefoxPriority HIGH 82
- TI-2022-15378 Use after free in Mozilla FirefoxPriority HIGH 73
- TI-2022-15376 Unrestricted file upload in Mozilla FirefoxPriority HIGH 73
- Release ·
Mozilla Thunderbird 102, 91.11
10 records Highest priority Priority HIGH 3 HIGH, 4 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2022-15364 Use after free in Mozilla FirefoxPriority HIGH 82
- TI-2022-15378 Use after free in Mozilla FirefoxPriority HIGH 73
- TI-2022-15362 An iframe that was not permitted to run scripts could do so if the user clicked on a…Priority HIGH 73
Show 1 more group
- Release ·
Mozilla Firefox ESR 91.11
9 records Highest priority Priority HIGH 3 HIGH, 4 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2022-15364 Use after free in Mozilla FirefoxPriority HIGH 82
- TI-2022-15378 Use after free in Mozilla FirefoxPriority HIGH 73
- TI-2022-15362 An iframe that was not permitted to run scripts could do so if the user clicked on a…Priority HIGH 73
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-2022-34478
- 2026-10-03 Alias added: GHSA-g6c6-9mmh-32cw
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-2022-34478 · CVE Program
- CVE-2022-34478 · NVD
- FIRST EPSS
- GHSA-g6c6-9mmh-32cw · GitHub Advisory Database · CC BY 4.0
- CVE-2022-34478 · 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