Mozilla Firefox up to 97 Thread use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$5k-$25k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Mozilla Firefox up to 97. This vulnerability affects unknown code of the component Thread Handler. Performing a manipulation results in use after free. This vulnerability was named CVE-2022-26385. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mozilla Firefox up to 97 (Web Browser). This affects some unknown functionality of the component Thread Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

In unusual circumstances, an individual thread may outlive the thread's manager during shutdown. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 98.

The weakness was presented 03/08/2022 by bo13oy as Bug 1747526 as confirmed advisory (Website). It is possible to read the advisory at bugzilla.mozilla.org. The advisory contains:

In unusual circumstances, an individual thread may outlive the thread's manager during shutdown. This could have led to a use-after-free causing a potentially exploitable crash.
This vulnerability is uniquely identified as CVE-2022-26385. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/15/2025).

Upgrading to version 98 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 98

Timelineinfo

03/03/2022 🔍
03/08/2022 +5 days 🔍
03/08/2022 +0 days 🔍
09/29/2022 +205 days 🔍
04/15/2025 +929 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1747526
Researcher: bo13oy
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-26385 (🔍)
GCVE (CVE): GCVE-0-2022-26385
GCVE (VulDB): GCVE-100-209883

Entryinfo

Created: 09/29/2022 17:44
Updated: 04/15/2025 23:53
Changes: 09/29/2022 17:44 (18), 09/29/2022 17:47 (28), 10/26/2022 08:50 (1), 04/15/2025 23:53 (27)
Complete: 🔍
Cache ID: 216::103

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