Google Chrome up to 145.0.7632.159 TextEncoding use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Google Chrome. This vulnerability affects unknown code of the component TextEncoding. The manipulation leads to use after free. This vulnerability is listed as CVE-2026-3921. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome and classified as critical. This issue affects some unknown processing of the component TextEncoding. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Use after free in TextEncoding in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

The advisory is shared at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2026-3921 since 03/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 03/15/2026).

The vulnerability scanner Nessus provides a plugin with the ID 302011 (Debian dsa-6164 : chromium - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 146.0.7680.71 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (302011) and CERT Bund (WID-SEC-2026-0702). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Fedora Linux
  • Google Chrome

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 8.8
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Nessus ID: 302011
Nessus Name: Debian dsa-6164 : chromium - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 146.0.7680.71

Timelineinfo

03/11/2026 CVE reserved
03/12/2026 +1 days Advisory disclosed
03/12/2026 +0 days VulDB entry created
03/15/2026 +3 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 484946
Status: Confirmed

CVE: CVE-2026-3921 (🔒)
GCVE (CVE): GCVE-0-2026-3921
GCVE (VulDB): GCVE-100-350573
CERT Bund: WID-SEC-2026-0702 - Google Chrome: Mehrere Schwachstellen

Entryinfo

Created: 03/12/2026 04:40
Updated: 03/15/2026 01:12
Changes: 03/12/2026 04:40 (58), 03/13/2026 14:32 (2), 03/13/2026 21:24 (7), 03/15/2026 01:12 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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