Out-of-bounds read in Mozilla Firefox
Priority MEDIUM 41CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 17 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00931 60th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 116Firefox ESR (Mozilla): 102.14, 115.1Red Hat: 16 advisoriesRed Hat: 17 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 116 | 116 | Patch available | CNA |
| Mozilla | Firefox ESR | before 102.14 | 102.14 | Patch available | CNA |
| Mozilla | Firefox ESR | before 115.1 | 115.1 | Patch available | CNA |
- Firefox VendorMozilla Affected before 116 Fixed in 116 Patch available CNA
- Firefox ESR VendorMozilla Affected before 102.14 Fixed in 102.14 Patch available CNA
- Firefox ESR VendorMozilla Affected before 115.1 Fixed in 115.1 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 116.0; 102.0 to before 102.14; 115.0 to before 115.1 | Vulnerable | Mozilla |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Debian |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 116.0; 102.0 to before 102.14; 115.0 to before 115.1 Vulnerable ·Mozilla
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Debian
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 116
- Fix · CNA Firefox ESR (Mozilla) Fixed in 102.14
- Fix · CNA Firefox ESR (Mozilla) Fixed in 115.1
Red Hat 16 advisories
- RHSA-2023:4500 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-102.14.0-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-102.14.0-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-102.14.0-1.el8_4
- RHSA-2023:4497 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.14.0-1.el8_8
- RHSA-2023:4499 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.14.0-1.el9_2
Show 13 more Red Hat advisories
- RHSA-2023:4495 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-102.14.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.14.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.14.0-1.el7_9
- RHSA-2023:4496 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.14.0-1.el8_2
- Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.14.0-1.el8_2
- Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.14.0-1.el8_2
- RHSA-2023:4493 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-102.14.0-1.el8_6
- RHSA-2023:4494 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-102.14.0-1.el9_0
- RHSA-2023:4492 Released 2023-08-07 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.14.0-1.el8_1
- RHSA-2023:4468 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-102.14.0-1.el8_8
- RHSA-2023:4469 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-102.14.0-1.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-102.14.0-1.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-102.14.0-1.el8_4
- RHSA-2023:4461 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-102.14.0-1.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.14.0-1.el7_9
- Red Hat Enterprise Linux Server (v. 7) firefox-102.14.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.14.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-102.14.0-1.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.14.0-1.el7_9
- RHSA-2023:4463 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-102.14.0-1.el8_6
- RHSA-2023:4465 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-102.14.0-1.el9_0
- RHSA-2023:4464 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.14.0-1.el8_1
- RHSA-2023:4462 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-102.14.0-1.el9_2, firefox-x11-102.14.0-1.el9_2
- RHSA-2023:4460 Released 2023-08-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.14.0-1.el8_2
- Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.14.0-1.el8_2
- Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.14.0-1.el8_2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 116
14 records Highest priority Priority MEDIUM 8 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
- TI-2023-03764 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
- TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
- Release ·
Mozilla Firefox ESR 115.1
11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
- TI-2023-03764 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
- TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
Show 1 more group
- Release ·
Mozilla Firefox ESR 102.14
9 records Highest priority Priority MEDIUM 5 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2023-03757 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 53
- TI-2023-03763 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 51
- TI-2023-03754 Cross-site request forgery in Mozilla FirefoxPriority MEDIUM 41
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-2023:4468, RHSA-2023:4497 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:4462, RHSA-2023:4499 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2023:4460, RHSA-2023:4496 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2023:4469, RHSA-2023:4500 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.1) | Fixed | RHSA-2023:4464, RHSA-2023:4492 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.2) | Fixed | RHSA-2023:4460, RHSA-2023:4496 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2023:4469, RHSA-2023:4500 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2023:4463, RHSA-2023:4493 |
| Red Hat Enterprise Linux AppStream EUS (v.9.0) | Fixed | RHSA-2023:4465, RHSA-2023:4494 |
| Red Hat Enterprise Linux AppStream TUS (v. 8.2) | Fixed | RHSA-2023:4460, RHSA-2023:4496 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2023:4469, RHSA-2023:4500 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2023:4461, RHSA-2023:4495 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2023:4461 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2023:4461 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2023:4461, RHSA-2023:4495 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2023:4461, RHSA-2023:4495 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2023:4461 |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-4048
- 2026-10-03 Alias added: GHSA-969j-v3p3-p4vv
References
Advisory 7
- https://www.mozilla.org/security/advisories/mfsa2023-29/
- https://www.mozilla.org/security/advisories/mfsa2023-30/
- https://www.mozilla.org/security/advisories/mfsa2023-31/
- https://www.debian.org/security/2023/dsa-5464
- https://www.debian.org/security/2023/dsa-5469
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html
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-2023-4048 · CVE Program
- CVE-2023-4048 · NVD
- FIRST EPSS
- GHSA-969j-v3p3-p4vv · GitHub Advisory Database · CC BY 4.0
- CVE-2023-4048 · 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