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TI-2023-12731 Aliases CVE-2023-28162GHSA-4x64-w698-xf5g

Type confusion in Mozilla Firefox

Priority HIGH 73CWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 15 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-843 and the CVSS impact.

Summary

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00702 53rd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 111Firefox ESR (Mozilla): 102.9+1 more productRed Hat: 16 advisoriesRed Hat: 15 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
MozillaFirefoxbefore 111111Patch availableCNA
MozillaFirefox ESRbefore 102.9102.9Patch availableCNA
MozillaThunderbirdbefore 102.9102.9Patch availableCNA
  • Firefox VendorMozilla Affected before 111 Fixed in 111 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 102.9 Fixed in 102.9 Patch available CNA
  • Thunderbird VendorMozilla Affected before 102.9 Fixed in 102.9 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 111.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 102.9VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 102.9VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 111.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 102.9 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 102.9 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 111
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 102.9
  • Fix · CNA Thunderbird (Mozilla) Fixed in 102.9

Red Hat 16 advisories

  • RHSA-2023:1479 Released 2023-03-27 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.9.0-4.el8_1
  • RHSA-2023:1472 Released 2023-03-27 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-102.9.0-2.el8_4
  • RHSA-2023:1444 Released 2023-03-23 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-102.9.0-4.el8_4
Show 13 more Red Hat advisories
  • RHSA-2023:1445 Released 2023-03-23 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.9.0-4.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.9.0-4.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.9.0-4.el8_2
  • RHSA-2023:1443 Released 2023-03-23 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.9.0-2.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.9.0-2.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.9.0-2.el8_2
  • RHSA-2023:1442 Released 2023-03-23 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.9.0-2.el8_1
  • RHSA-2023:1404 Released 2023-03-22 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird-102.9.0-1.el8_6
  • RHSA-2023:1403 Released 2023-03-22 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.9.0-1.el8_7
  • RHSA-2023:1407 Released 2023-03-22 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.9.0-1.el9_1
  • RHSA-2023:1402 Released 2023-03-22 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird-102.9.0-1.el9_0
  • RHSA-2023:1401 Released 2023-03-22 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-102.9.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.9.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.9.0-1.el7_9
  • RHSA-2023:1367 Released 2023-03-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox-102.9.0-3.el8_6
  • RHSA-2023:1364 Released 2023-03-21 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox-102.9.0-3.el9_0
  • RHSA-2023:1336 Released 2023-03-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-102.9.0-3.el8_7
  • RHSA-2023:1337 Released 2023-03-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-102.9.0-3.el9_1, firefox-x11-102.9.0-3.el9_1
  • RHSA-2023:1333 Released 2023-03-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-102.9.0-3.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.9.0-3.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-102.9.0-3.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.9.0-3.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-102.9.0-3.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.9.0-3.el7_9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 111

    13 records Highest priority Priority HIGH 2 HIGH, 9 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-12730 If temporary "one-time" permissions, such as the ability to use the Camera, were granted…Priority HIGH 73
    • TI-2023-12733 Origin validation error in Mozilla FirefoxPriority MEDIUM 62
    • TI-2023-12732 Path traversal in Mozilla FirefoxPriority MEDIUM 62
    Show all 13 records →
  • Release ·

    Mozilla Firefox ESR, Thunderbird 102.9

    6 records Highest priority Priority HIGH 1 HIGH, 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2023-12733 Origin validation error in Mozilla FirefoxPriority MEDIUM 62
    • TI-2023-12732 Path traversal in Mozilla FirefoxPriority MEDIUM 62
    • TI-2023-11023 Sometimes, when invalidating JIT code while following an iterator, the newly generated…Priority MEDIUM 62
    Show all 6 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:1336, RHSA-2023:1403
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:1337, RHSA-2023:1407
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:1442, RHSA-2023:1479
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2023:1444, RHSA-2023:1472
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:1367, RHSA-2023:1404
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:1364, RHSA-2023:1402
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:1333, RHSA-2023:1401
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:1333
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:1333
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:1333, RHSA-2023:1401
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:1333, RHSA-2023:1401
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:1333

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-28162
  2. 2026-10-03 Alias added: GHSA-4x64-w698-xf5g

References

Advisory 4

  • 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