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TI-2026-13225 Aliases CVE-2026-15718GHSA-6f82-p732-9cp8

Invalid pointer in the JavaScript: WebAssembly component

Priority LOW 21CWE-763Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
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.

Summary

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00489 42nd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 140.13, 152.0.6Thunderbird (Mozilla): 140.13Red 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
Partial

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—140.13, 152.0.6Patch availableCNA
MozillaThunderbird—140.13Patch availableCNA
  • Firefox VendorMozilla Affected — Fixed in 140.13, 152.0.6 Patch available CNA
  • Thunderbird VendorMozilla Affected — Fixed in 140.13 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*before 152.0.6VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 152.0.6 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 140.13, 152.0.6
  • Fix · CNA Thunderbird (Mozilla) Fixed in 140.13

Red Hat 21 advisories

  • RHSA-2026:54339 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) firefox-140.13.0-1.el8_8
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) firefox-140.13.0-1.el8_8
  • RHSA-2026:54248 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) firefox-140.13.0-1.el7_9
  • RHSA-2026:54249 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) firefox-140.13.0-1.el9_6, firefox-x11-140.13.0-1.el9_6
Show 18 more Red Hat advisories
  • RHSA-2026:54259 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-140.13.0-1.el8_6
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) firefox-140.13.0-1.el8_6
  • RHSA-2026:54182 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) firefox-140.13.0-1.el9_4, firefox-x11-140.13.0-1.el9_4
  • RHSA-2026:54181 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) firefox-140.13.0-1.el10_0
  • RHSA-2026:54185 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) firefox-140.13.0-1.el9_2, firefox-x11-140.13.0-1.el9_2
  • RHSA-2026:54180 Released 2026-08-12 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-140.13.0-1.el8_4
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) firefox-140.13.0-1.el8_4
  • RHSA-2026:53475 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) thunderbird-140.13.0-1.el9_2
  • RHSA-2026:53454 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) thunderbird-140.13.0-1.el8_8
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) thunderbird-140.13.0-1.el8_8
  • RHSA-2026:53453 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) thunderbird-140.13.0-1.el8_6
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) thunderbird-140.13.0-1.el8_6
  • RHSA-2026:53455 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-140.13.0-1.el8_4
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) thunderbird-140.13.0-1.el8_4
  • RHSA-2026:53446 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) thunderbird-140.13.0-1.el9_6
  • RHSA-2026:53444 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) thunderbird-140.13.0-1.el9_4
  • RHSA-2026:53445 Released 2026-08-11 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) thunderbird-140.13.0-1.el10_0
  • RHSA-2026:49921 Released 2026-08-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-140.13.0-1.el9_8
  • RHSA-2026:49922 Released 2026-08-04 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-140.13.0-1.el8_10
  • RHSA-2026:49621 Released 2026-08-03 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 10) thunderbird-140.13.0-1.el10_2
  • RHSA-2026:47104 Released 2026-08-03 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-140.13.0-1.el9_8, firefox-x11-140.13.0-1.el9_8
  • RHSA-2026:47105 Released 2026-07-28 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-140.13.0-1.el8_10
  • RHSA-2026:47101 Released 2026-07-28 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 10) firefox-140.13.0-1.el10_2

Vendor assessments

Red Hat

Red Hat rating: Moderate. 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-2026:47101, RHSA-2026:49621
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:47105, RHSA-2026:49922
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:47104, RHSA-2026:49921
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2026:53455, RHSA-2026:54180
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2026:53453, RHSA-2026:54259
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2026:53454, RHSA-2026:54339
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:53475, RHSA-2026:54185
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:53444, RHSA-2026:54182
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:53445, RHSA-2026:54181
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:53446, RHSA-2026:54249
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Fixed RHSA-2026:53455, RHSA-2026:54180
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Fixed RHSA-2026:53453, RHSA-2026:54259
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2026:53454, RHSA-2026:54339
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:54248

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-15718
  2. 2026-10-03 Alias added: GHSA-6f82-p732-9cp8

References

Advisory 1

Other 3

  • 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