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TI-2026-07130 Aliases CVE-2026-8092GHSA-2ch8-2mw7-grmm

Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2

Priority LOW 37CWE-125Published · 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: 14 fixed, 3 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 Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. 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 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00414 35th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 115.35.2, 140.10.2, 150.0.2Thunderbird (Mozilla): 140.10.2, 150.0.2Red Hat: 21 advisoriesRed Hat: 14 fixed, 3 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—115.35.2, 140.10.2, 150.0.2Patch availableCNA
MozillaThunderbird—140.10.2, 150.0.2Patch availableCNA
  • Firefox VendorMozilla Affected — Fixed in 115.35.2, 140.10.2, 150.0.2 Patch available CNA
  • Thunderbird VendorMozilla Affected — Fixed in 140.10.2, 150.0.2 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*before 115.35.2; 140.0 to before 140.10.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*150.0 to before 150.0.2VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*140.0 to before 140.10.2; 150.0 to before 150.0.2VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 115.35.2; 140.0 to before 140.10.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions 150.0 to before 150.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* Versions 140.0 to before 140.10.2; 150.0 to before 150.0.2 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 115.35.2, 140.10.2, 150.0.2
  • Fix · CNA Thunderbird (Mozilla) Fixed in 140.10.2, 150.0.2

Red Hat 21 advisories

  • RHSA-2026:26539 Released 2026-06-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) thunderbird-140.11.0-1.el10_0
  • RHSA-2026:26536 Released 2026-06-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) thunderbird-140.11.0-1.el8_6
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) thunderbird-140.11.0-1.el8_6
  • RHSA-2026:26521 Released 2026-06-17 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) thunderbird-140.11.0-1.el9_6
Show 18 more Red Hat advisories
  • RHSA-2026:26268 Released 2026-06-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) thunderbird-140.11.0-1.el8_8
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) thunderbird-140.11.0-1.el8_8
  • RHSA-2026:26269 Released 2026-06-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) thunderbird-140.11.0-1.el9_2
  • RHSA-2026:26270 Released 2026-06-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-140.11.0-1.el8_4
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) thunderbird-140.11.0-1.el8_4
  • RHSA-2026:26174 Released 2026-06-16 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) thunderbird-140.11.0-1.el9_4
  • RHSA-2026:25015 Released 2026-06-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-140.10.2-1.el8_6
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) firefox-140.10.2-1.el8_6
  • RHSA-2026:24983 Released 2026-06-10 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) firefox-140.10.2-1.el7_9
  • RHSA-2026:24755 Released 2026-06-09 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) firefox-140.10.2-1.el8_8
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) firefox-140.10.2-1.el8_8
  • RHSA-2026:24508 Released 2026-06-08 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) firefox-140.10.2-1.el9_6, firefox-x11-140.10.2-1.el9_6
  • RHSA-2026:24516 Released 2026-06-08 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-140.10.2-1.el8_4
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) firefox-140.10.2-1.el8_4
  • RHSA-2026:24510 Released 2026-06-08 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) firefox-140.10.2-1.el9_4, firefox-x11-140.10.2-1.el9_4
  • RHSA-2026:24509 Released 2026-06-08 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) firefox-140.10.2-1.el9_2, firefox-x11-140.10.2-1.el9_2
  • RHSA-2026:24511 Released 2026-06-08 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) firefox-140.10.2-1.el10_0
  • RHSA-2026:22643 Released 2026-06-03 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-140.11.0-1.el8_10
  • RHSA-2026:22325 Released 2026-06-01 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 10) thunderbird-140.11.0-1.el10_2
  • RHSA-2026:21381 Released 2026-05-27 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-140.11.0-1.el9_8
  • RHSA-2026:20574 Released 2026-05-26 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-140.10.2-1.el9_8, firefox-x11-140.10.2-1.el9_8
  • RHSA-2026:20566 Released 2026-05-26 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-140.10.2-1.el8_10
  • RHSA-2026:19160 Released 2026-05-19 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 10) firefox-140.10.2-1.el10_2

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 AppStream (v. 10)Fixed RHSA-2026:19160, RHSA-2026:22325
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:20566, RHSA-2026:22643
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:20574, RHSA-2026:21381
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2026:24516, RHSA-2026:26270
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2026:25015, RHSA-2026:26536
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2026:24755, RHSA-2026:26268
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:24509, RHSA-2026:26269
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:24510, RHSA-2026:26174
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:24511, RHSA-2026:26539
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:24508, RHSA-2026:26521
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Fixed RHSA-2026:24516, RHSA-2026:26270
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Fixed RHSA-2026:25015, RHSA-2026:26536
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2026:24755, RHSA-2026:26268
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:24983

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8092
  2. 2026-10-03 Alias added: GHSA-2ch8-2mw7-grmm
  3. 2026-10-21 Title updated · CNA

References

Advisory 5

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