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TI-2025-02643 Aliases CVE-2025-3030GHSA-8r77-rxc7-qgvv

Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9

Priority LOW 38CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
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-416 and the CVSS impact.

Summary

Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. 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 was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00513 43rd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 128.9, 137Thunderbird (Mozilla): 128.9, 137Red Hat: 21 advisoriesRed Hat: 15 fixed, 4 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

VendorProductAffected versionsFixed inStatusSource
MozillaFirefox—128.9, 137Patch availableCNA
MozillaThunderbird—128.9, 137Patch availableCNA
  • Firefox VendorMozilla Affected — Fixed in 128.9, 137 Patch available CNA
  • Thunderbird VendorMozilla Affected — Fixed in 128.9, 137 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*before 128.8.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*before 136.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 128.8.0; 129.0 to before 136.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 128.8.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 136.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 128.8.0; 129.0 to before 136.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 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 Important
    thunderbird 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 Important
    firefox 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    thunderbird 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 Important
    firefox 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 →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo 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

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-3030
  2. 2026-10-03 Alias added: GHSA-8r77-rxc7-qgvv

References

Advisory 4

Other 1

  • 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
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences