A malicious website that could create a popup could have resized the popup to overlay the…
Priority MEDIUM 62CWE-451Published · Updated
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
- Partial Red Hat: 11 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-451.
Summary
A malicious website that could create a popup could have resized the popup to overlay the address bar with its own content, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00761 55th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 102Firefox ESR (Mozilla): 91.11+1 more productRed Hat: 12 advisoriesRed Hat: 11 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
- 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:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
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
Red Hat 12 advisories
- RHSA-2022:5482 Released 2022-07-01 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 9) thunderbird-91.11.0-2.el9_0
- RHSA-2022:5481 Released 2022-07-01 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-91.11.0-2.el9_0
- RHSA-2022:5479 Released 2022-07-01 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-91.11.0-2.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-91.11.0-2.el7_9
- Red Hat Enterprise Linux Server (v. 7) firefox-91.11.0-2.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-91.11.0-2.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-91.11.0-2.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-91.11.0-2.el7_9
Show 9 more Red Hat advisories
- RHSA-2022:5480 Released 2022-07-01 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-91.11.0-2.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-91.11.0-2.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-91.11.0-2.el7_9
- RHSA-2022:5474 Released 2022-07-01 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-91.11.0-2.el8_2
- RHSA-2022:5475 Released 2022-07-01 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-91.11.0-2.el8_2
- RHSA-2022:5470 Released 2022-06-30 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-91.11.0-2.el8_6
- RHSA-2022:5469 Released 2022-06-30 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-91.11.0-2.el8_6
- RHSA-2022:5472 Released 2022-06-30 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-91.11.0-2.el8_4
- RHSA-2022:5473 Released 2022-06-30 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-91.11.0-2.el8_4
- RHSA-2022:5478 Released 2022-06-30 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-91.11.0-2.el8_1
- RHSA-2022:5477 Released 2022-06-30 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-91.11.0-2.el8_1
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: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:5469, RHSA-2022:5470 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:5481, RHSA-2022:5482 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.1) | Fixed | RHSA-2022:5477, RHSA-2022:5478 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2022:5474, RHSA-2022:5475 |
| Red Hat Enterprise Linux AppStream EUS (v.8.4) | Fixed | RHSA-2022:5472, RHSA-2022:5473 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2022:5479, RHSA-2022:5480 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2022:5479 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2022:5479 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2022:5479, RHSA-2022:5480 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2022:5479, RHSA-2022:5480 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2022:5479 |
Timeline
- 2026-10-02 Threatist record created from CVE-2022-34479
- 2026-10-03 Alias added: GHSA-w63f-86wf-7jwc
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-2022-34479 · CVE Program
- CVE-2022-34479 · NVD
- FIRST EPSS
- GHSA-w63f-86wf-7jwc · GitHub Advisory Database · CC BY 4.0
- CVE-2022-34479 · 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