Use-after-free triggered by XSLTProcessor
Priority LOW 36CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Partial Red Hat: 15 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0087 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Firefox (Mozilla): 115.22, 128.9, 137Thunderbird (Mozilla): 128.9, 137Red Hat: 21 advisoriesRed Hat: 15 fixed, 3 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 | — | 115.22, 128.9, 137 | Patch available | CNA |
| Mozilla | Thunderbird | — | 128.9, 137 | Patch available | CNA |
- Firefox VendorMozilla Affected — Fixed in 115.22, 128.9, 137 Patch available CNA
- Thunderbird VendorMozilla Affected — Fixed in 128.9, 137 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* | before 115.22.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* | before 137.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* | 116.0 to before 128.9.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 128.9.0; 129.0 – 137.0 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 115.22.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 137.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions 116.0 to before 128.9.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 128.9.0; 129.0 – 137.0 Vulnerable ·Mozilla
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 115.22, 128.9, 137
- Fix · CNA Thunderbird (Mozilla) Fixed in 128.9, 137
Red Hat 21 advisories
- RHSA-2025:7493 Released 2025-05-13 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 10) thunderbird-128.9.0-2.el10_0
- RHSA-2025:7491 Released 2025-05-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 10) firefox-128.9.0-3.el10_0
- RHSA-2025:4170 Released 2025-04-24 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-128.9.0-2.el8_10
Show 18 more Red Hat advisories
- RHSA-2025:4169 Released 2025-04-24 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream (v. 9) thunderbird-128.9.0-2.el9_5
- RHSA-2025:4029 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) thunderbird-128.9.0-2.el8_8
- RHSA-2025:4026 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) thunderbird-128.9.0-2.el9_4
- RHSA-2025:4030 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) thunderbird-128.9.0-2.el8_6
- Red Hat Enterprise Linux AppStream E4S (v.8.6) thunderbird-128.9.0-2.el8_6
- Red Hat Enterprise Linux AppStream TUS (v.8.6) thunderbird-128.9.0-2.el8_6
- RHSA-2025:4027 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) thunderbird-128.9.0-2.el9_2
- RHSA-2025:4031 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-128.9.0-2.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) thunderbird-128.9.0-2.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) thunderbird-128.9.0-2.el8_4
- RHSA-2025:4028 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) thunderbird-128.9.0-2.el9_0
- RHSA-2025:4032 Released 2025-04-23 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-128.9.0-2.el8_2
- RHSA-2025:3628 Released 2025-04-07 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Server (v. 7 ELS) firefox-128.9.0-2.el7_9
- RHSA-2025:3620 Released 2025-04-07 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-128.9.0-2.el8_8
- RHSA-2025:3621 Released 2025-04-07 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-128.9.0-2.el8_6
- Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox-128.9.0-2.el8_6
- Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox-128.9.0-2.el8_6
- RHSA-2025:3623 Released 2025-04-07 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-128.9.0-2.el8_2
- RHSA-2025:3590 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) firefox-128.9.0-2.el9_4, firefox-x11-128.9.0-2.el9_4
- RHSA-2025:3589 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-128.9.0-2.el9_2, firefox-x11-128.9.0-2.el9_2
- RHSA-2025:3587 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-128.9.0-2.el9_0
- RHSA-2025:3582 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-128.9.0-2.el8_10
- RHSA-2025:3581 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-128.9.0-2.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-128.9.0-2.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-128.9.0-2.el8_4
- RHSA-2025:3556 Released 2025-04-03 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-128.9.0-2.el9_5, firefox-x11-128.9.0-2.el9_5
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 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-2025:7491, RHSA-2025:7493 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:3582, RHSA-2025:4170 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:3556, RHSA-2025:4169 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2025:3623, RHSA-2025:4032 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2025:3581, RHSA-2025:4031 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2025:3621, RHSA-2025:4030 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2025:3581, RHSA-2025:4031 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2025:3621, RHSA-2025:4030 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:3587, RHSA-2025:4028 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2025:3620, RHSA-2025:4029 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2025:3589, RHSA-2025:4027 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:3590, RHSA-2025:4026 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2025:3581, RHSA-2025:4031 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2025:3621, RHSA-2025:4030 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2025:3628 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3028
- 2026-10-03 Alias added: GHSA-p5r8-47qx-x497
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-2025-3028 · CVE Program
- CVE-2025-3028 · NVD
- FIRST EPSS
- GHSA-p5r8-47qx-x497 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-3028 · 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