Code injection in Mozilla Firefox
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 15 fixed, 4 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-94.
Summary
Memory safety bugs present in Firefox 132, Firefox ESR 128.4, and Thunderbird 128.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 133 | 133 | Patch available | CNA |
| Mozilla | Firefox ESR | before 128.5 | 128.5 | Patch available | CNA |
| Mozilla | Thunderbird | before 133 | 133 | Patch available | CNA |
| Mozilla | Thunderbird | before 128.5 | 128.5 | Patch available | CNA |
- Firefox VendorMozilla Affected before 133 Fixed in 133 Patch available CNA
- Firefox ESR VendorMozilla Affected before 128.5 Fixed in 128.5 Patch available CNA
- Thunderbird VendorMozilla Affected before 133 Fixed in 133 Patch available CNA
- Thunderbird VendorMozilla Affected before 128.5 Fixed in 128.5 Patch available CNA
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 133
- Fix · CNA Firefox ESR (Mozilla) Fixed in 128.5
- Fix · CNA Thunderbird (Mozilla) Fixed in 133
- Fix · CNA Thunderbird (Mozilla) Fixed in 128.5
Red Hat 20 advisories
- RHSA-2026:18479 Released 2026-05-19 · Red Hat rating Importantqemu-kvm security update
- Red Hat Enterprise Linux AppStream (v. 10) qemu-guest-agent-18:10.1.0-16.el10_2, qemu-img-18:10.1.0-16.el10_2, qemu-kvm-18:10.1.0-16.el10_2 +17
- RHSA-2024:10880 Released 2024-12-09 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-128.5.1-1.el8_6
- Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox-128.5.1-1.el8_6
- Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox-128.5.1-1.el8_6
- RHSA-2024:10881 Released 2024-12-09 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Server (v. 7 ELS) firefox-128.5.1-1.el7_9
Show 17 more Red Hat advisories
- RHSA-2024:10848 Released 2024-12-05 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-128.5.1-1.el8_8
- RHSA-2024:10849 Released 2024-12-05 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-128.5.1-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-128.5.1-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-128.5.1-1.el8_4
- RHSA-2024:10844 Released 2024-12-05 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-128.5.1-1.el8_2
- RHSA-2024:10752 Released 2024-12-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-128.5.1-1.el8_10
- RHSA-2024:10748 Released 2024-12-03 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) thunderbird-128.5.0-1.el9_4
- RHSA-2024:10745 Released 2024-12-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-128.5.1-1.el9_2, firefox-x11-128.5.1-1.el9_2
- RHSA-2024:10742 Released 2024-12-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) firefox-128.5.1-1.el9_4, firefox-x11-128.5.1-1.el9_4
- RHSA-2024:10743 Released 2024-12-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-128.5.1-1.el9_0
- RHSA-2024:10734 Released 2024-12-03 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) thunderbird-128.5.0-1.el8_6
- Red Hat Enterprise Linux AppStream E4S (v.8.6) thunderbird-128.5.0-1.el8_6
- Red Hat Enterprise Linux AppStream TUS (v.8.6) thunderbird-128.5.0-1.el8_6
- RHSA-2024:10733 Released 2024-12-03 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-128.5.0-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-128.5.0-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-128.5.0-1.el8_4
- RHSA-2024:10710 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) thunderbird-128.5.0-1.el8_8
- RHSA-2024:10704 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-128.5.0-1.el8_2
- RHSA-2024:10703 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) thunderbird-128.5.0-1.el9_0
- RHSA-2024:10702 Released 2024-12-02 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-128.5.1-1.el9_5, firefox-x11-128.5.1-1.el9_5
- RHSA-2024:10667 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) thunderbird-128.5.0-1.el9_2
- RHSA-2024:10591 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-128.5.0-1.el8_10
- RHSA-2024:10592 Released 2024-12-02 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 9) thunderbird-128.5.0-1.el9_5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 133
17 records Highest priority Priority MEDIUM 7 MEDIUM, 10 LOW
Other records, highest priority first
- TI-2024-10850 Double free in Mozilla FirefoxPriority MEDIUM 51
- TI-2024-10844 A flaw in handling fullscreen transitions may have inadvertently caused the application…Priority MEDIUM 50
- TI-2024-10839 The executable file warning was not presented when downloading .library-ms files.Priority MEDIUM 50
- Release ·
Mozilla Thunderbird 133
16 records Highest priority Priority MEDIUM 7 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2024-10850 Double free in Mozilla FirefoxPriority MEDIUM 51
- TI-2024-10844 A flaw in handling fullscreen transitions may have inadvertently caused the application…Priority MEDIUM 50
- TI-2024-10839 The executable file warning was not presented when downloading .library-ms files.Priority MEDIUM 50
Show 1 more group
- Release ·
Mozilla Firefox ESR, Thunderbird 128.5
9 records Highest priority Priority MEDIUM 5 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2024-10844 A flaw in handling fullscreen transitions may have inadvertently caused the application…Priority MEDIUM 50
- TI-2024-10839 The executable file warning was not presented when downloading .library-ms files.Priority MEDIUM 50
- TI-2024-10843 Code injection in Mozilla FirefoxPriority MEDIUM 42
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:18479 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:10591, RHSA-2024:10752 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:10592, RHSA-2024:10702 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2024:10704, RHSA-2024:10844 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2024:10733, RHSA-2024:10849 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2024:10734, RHSA-2024:10880 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2024:10733, RHSA-2024:10849 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2024:10734, RHSA-2024:10880 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2024:10703, RHSA-2024:10743 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:10710, RHSA-2024:10848 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:10667, RHSA-2024:10745 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2024:10742, RHSA-2024:10748 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2024:10733, RHSA-2024:10849 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2024:10734, RHSA-2024:10880 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2024:10881 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11699
- 2026-10-03 Alias added: GHSA-9g2q-259c-66mq
References
Advisory 4
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-2024-11699 · CVE Program
- CVE-2024-11699 · NVD
- FIRST EPSS
- GHSA-9g2q-259c-66mq · GitHub Advisory Database · CC BY 4.0
- CVE-2024-11699 · 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