Out-of-bounds read in Mozilla Firefox
Priority LOW 36CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 18 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
When storing and re-accessing data on a networking channel, the length of buffers may have been confused, resulting in an out-of-bounds memory read. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00718 54th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 123Firefox ESR (Mozilla): 115.8+1 more productRed Hat: 18 advisoriesRed Hat: 18 fixed, 1 without a fix
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 123 | 123 | Patch available | CNA |
| Mozilla | Firefox ESR | before 115.8 | 115.8 | Patch available | CNA |
| Mozilla | Thunderbird | before 115.8 | 115.8 | Patch available | CNA |
- Firefox VendorMozilla Affected before 123 Fixed in 123 Patch available CNA
- Firefox ESR VendorMozilla Affected before 115.8 Fixed in 115.8 Patch available CNA
- Thunderbird VendorMozilla Affected before 115.8 Fixed in 115.8 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* | before 115.8.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* | before 123.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 115.8.0 | Vulnerable | Mozilla |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 115.8.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 123.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 115.8.0 Vulnerable ·Mozilla
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 123
- Fix · CNA Firefox ESR (Mozilla) Fixed in 115.8
- Fix · CNA Thunderbird (Mozilla) Fixed in 115.8
Red Hat 18 advisories
- RHSA-2024:0983 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-115.8.0-1.el9_2, firefox-x11-115.8.0-1.el9_2
- RHSA-2024:0984 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) thunderbird-115.8.0-1.el9_2
- RHSA-2024:0976 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-115.8.0-1.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-115.8.0-1.el7_9
- Red Hat Enterprise Linux Server (v. 7) firefox-115.8.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-115.8.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-115.8.0-1.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-115.8.0-1.el7_9
Show 15 more Red Hat advisories
- RHSA-2024:0968 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-115.8.0-1.el9_0
- RHSA-2024:0964 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-115.8.0-1.el8_9
- RHSA-2024:0970 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-115.8.0-1.el8_6
- RHSA-2024:0961 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) thunderbird-115.8.0-1.el8_8
- RHSA-2024:0969 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-115.8.0-1.el8_8
- RHSA-2024:0960 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-115.8.0-1.el8_6
- RHSA-2024:0962 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-115.8.0-1.el9_0
- RHSA-2024:0971 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-115.8.0-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-115.8.0-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-115.8.0-1.el8_4
- RHSA-2024:0972 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-115.8.0-1.el8_2
- Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-115.8.0-1.el8_2
- Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-115.8.0-1.el8_2
- RHSA-2024:0963 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 9) thunderbird-115.8.0-1.el9_3
- RHSA-2024:0957 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-115.8.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-115.8.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-115.8.0-1.el7_9
- RHSA-2024:0959 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-115.8.0-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-115.8.0-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-115.8.0-1.el8_4
- RHSA-2024:0958 Released 2024-02-26 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-115.8.0-1.el8_2
- Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-115.8.0-1.el8_2
- Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-115.8.0-1.el8_2
- RHSA-2024:0955 Released 2024-02-26 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-115.8.0-1.el8_9
- RHSA-2024:0952 Released 2024-02-22 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-115.8.0-1.el9_3, firefox-x11-115.8.0-1.el9_3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 123
12 records Highest priority Priority MEDIUM 1 MEDIUM, 11 LOW
Other records, highest priority first
- TI-2024-01450 Insufficient verification of data authenticity in Mozilla FirefoxPriority MEDIUM 49
- TI-2024-01449 Memory corruption in Mozilla FirefoxPriority LOW 39
- TI-2024-01453 Out-of-bounds write in Mozilla FirefoxPriority LOW 38
- Release ·
Mozilla Firefox ESR, Thunderbird 115.8
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2024-01449 Memory corruption in Mozilla FirefoxPriority LOW 39
- TI-2024-01448 Incorrect numeric conversion in Mozilla FirefoxPriority LOW 34
- TI-2024-01443 Authentication bypass by spoofing in Mozilla FirefoxPriority LOW 30
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-2024:0955, RHSA-2024:0964 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:0952, RHSA-2024:0963 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2024:0958, RHSA-2024:0972 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2024:0959, RHSA-2024:0971 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.2) | Fixed | RHSA-2024:0958, RHSA-2024:0972 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2024:0959, RHSA-2024:0971 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2024:0960, RHSA-2024:0970 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:0961, RHSA-2024:0969 |
| Red Hat Enterprise Linux AppStream EUS (v.9.0) | Fixed | RHSA-2024:0962, RHSA-2024:0968 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:0983, RHSA-2024:0984 |
| Red Hat Enterprise Linux AppStream TUS (v. 8.2) | Fixed | RHSA-2024:0958, RHSA-2024:0972 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2024:0959, RHSA-2024:0971 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2024:0957, RHSA-2024:0976 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2024:0976 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2024:0976 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2024:0957, RHSA-2024:0976 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2024:0957, RHSA-2024:0976 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2024:0976 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-1546
- 2026-10-03 Alias added: GHSA-w267-2gcr-ggcp
References
Advisory 3
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-2024-1546 · CVE Program
- CVE-2024-1546 · NVD
- FIRST EPSS
- GHSA-w267-2gcr-ggcp · GitHub Advisory Database · CC BY 4.0
- CVE-2024-1546 · Red Hat security data · CC BY 4.0
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