TI-2022-06987 Aliases CVE-2022-22737 GHSA-m884-m9x6-6rg3

Race condition in Mozilla Firefox ESR

HIGH 68CWE-362Published 2022-12-22 · Updated 2025-04-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Partial Red Hat: 10 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0078 56th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial Firefox ESR (Mozilla): 91.5Firefox (Mozilla): 96+1 more productRed Hat: 10 advisoriesRed Hat: 10 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Firefox ESR	before 91.5	91.5	Patch available	CNA
Mozilla	Firefox	before 96	96	Patch available	CNA
Mozilla	Thunderbird	before 91.5	91.5	Patch available	CNA

Firefox ESR VendorMozilla Affected before 91.5 Fixed in 91.5 Patch available CNA
Firefox VendorMozilla Affected before 96 Fixed in 96 Patch available CNA
Thunderbird VendorMozilla Affected before 91.5 Fixed in 91.5 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 96.0	Vulnerable	Mozilla
cpe:2.3:a:mozilla:firefox_esr::::::::	before 91.5	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird::::::::	before 91.5	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 96.0 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 91.5 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 91.5 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox ESR (Mozilla) Fixed in 91.5
Fix · CNA Firefox (Mozilla) Fixed in 96
Fix · CNA Thunderbird (Mozilla) Fixed in 91.5

Red Hat 10 advisories

RHSA-2022:0127 Released 2022-01-12 · Red Hat rating Important
thunderbird security update
- Red Hat Enterprise Linux Client (v. 7) thunderbird-91.5.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-91.5.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) thunderbird-91.5.0-1.el7_9
RHSA-2022:0124 Released 2022-01-12 · Red Hat rating Important
firefox security update
- Red Hat Enterprise Linux Client (v. 7) firefox-91.5.0-1.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-91.5.0-1.el7_9
- Red Hat Enterprise Linux Server (v. 7) firefox-91.5.0-1.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-91.5.0-1.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) firefox-91.5.0-1.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-91.5.0-1.el7_9
RHSA-2022:0129 Released 2022-01-12 · Red Hat rating Important
thunderbird security update
- Red Hat Enterprise Linux AppStream (v. 8) thunderbird-91.5.0-1.el8_5

Show 7 more Red Hat advisories

RHSA-2022:0128 Released 2022-01-12 · Red Hat rating Important
thunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-91.5.0-1.el8_4
RHSA-2022:0132 Released 2022-01-12 · Red Hat rating Important
firefox security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-91.5.0-1.el8_2
RHSA-2022:0131 Released 2022-01-12 · Red Hat rating Important
thunderbird security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-91.5.0-1.el8_1
RHSA-2022:0126 Released 2022-01-12 · Red Hat rating Important
firefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-91.5.0-1.el8_4
RHSA-2022:0130 Released 2022-01-12 · Red Hat rating Important
firefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-91.5.0-1.el8_5
RHSA-2022:0125 Released 2022-01-12 · Red Hat rating Important
firefox security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-91.5.0-1.el8_1
RHSA-2022:0123 Released 2022-01-12 · Red Hat rating Important
thunderbird security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-91.5.0-1.el8_2

Fixed in the same release

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

Release · 2022-12-22
Mozilla Firefox 96
19 records Highest priority Priority HIGH 5 HIGH, 6 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2021-03015 XML injection in Mozilla Firefox ESRPriority HIGH 82
- TI-2022-07013 Race condition in Mozilla FirefoxPriority HIGH 73
- TI-2022-06988 Out-of-bounds write in Mozilla Firefox ESRPriority HIGH 73
Show all 19 records →
Release · 2022-12-22
Mozilla Firefox ESR, Thunderbird 91.5
14 records Highest priority Priority HIGH 3 HIGH, 5 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2021-03015 XML injection in Mozilla Firefox ESRPriority HIGH 82
- TI-2022-06988 Out-of-bounds write in Mozilla Firefox ESRPriority HIGH 73
- TI-2022-06998 Cross-site scripting in Mozilla Firefox ESRPriority MEDIUM 62
Show all 14 records →

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 AppStream (v. 8)	Fixed	RHSA-2022:0129, RHSA-2022:0130
Red Hat Enterprise Linux AppStream E4S (v. 8.1)	Fixed	RHSA-2022:0125, RHSA-2022:0131
Red Hat Enterprise Linux AppStream EUS (v. 8.2)	Fixed	RHSA-2022:0123, RHSA-2022:0132
Red Hat Enterprise Linux AppStream EUS (v.8.4)	Fixed	RHSA-2022:0126, RHSA-2022:0128
Red Hat Enterprise Linux Client (v. 7)	Fixed	RHSA-2022:0124, RHSA-2022:0127
Red Hat Enterprise Linux Client Optional (v. 7)	Fixed	RHSA-2022:0124
Red Hat Enterprise Linux Server (v. 7)	Fixed	RHSA-2022:0124
Red Hat Enterprise Linux Server Optional (v. 7)	Fixed	RHSA-2022:0124, RHSA-2022:0127
Red Hat Enterprise Linux Workstation (v. 7)	Fixed	RHSA-2022:0124, RHSA-2022:0127
Red Hat Enterprise Linux Workstation Optional (v. 7)	Fixed	RHSA-2022:0124

Timeline

2026-10-02 Threatist record created from CVE-2022-22737
2026-10-03 Alias added: GHSA-m884-m9x6-6rg3

References

Exploit 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1745874

Advisory 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