Mozilla Firefox up to 97 SVG Object 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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4.1$5k-$25k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 97. It has been rated as problematic. Affected by this issue is some unknown functionality of the component SVG Object Handler. This manipulation causes use after free. This vulnerability is handled as CVE-2022-26381. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Mozilla Firefox up to 97 (Web Browser). Affected by this vulnerability is an unknown function of the component SVG Object Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability.

The weakness was released 03/08/2022 by Hossein Lotfi as Bug 1736243 as confirmed advisory (Website). The advisory is shared at bugzilla.mozilla.org. The advisory contains:

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash.
This vulnerability is known as CVE-2022-26381. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/09/2026).

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-30940). Several companies clearly confirm that VulDB is the primary source for best 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: 4.3
VulDB Meta Temp Score: 4.1

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

CVSSv2info

AVACAuCIA
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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 🔍
05/09/2026 +1318 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1736243
Researcher: Hossein Lotfi
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-26381 (🔍)
GCVE (CVE): GCVE-0-2022-26381
GCVE (VulDB): GCVE-100-209881
EUVD: 🔍

Entryinfo

Created: 09/29/2022 17:42
Updated: 05/09/2026 07:18
Changes: 09/29/2022 17:42 (3), 09/29/2022 17:43 (15), 09/29/2022 17:46 (28), 10/26/2022 08:43 (1), 05/09/2026 07:18 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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