Google Chrome up to 139.0.7258.154 Devtools cross-domain policy

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, which was classified as problematic, has been found in Google Chrome. The impacted element is an unknown function of the component Devtools. This manipulation causes cross-domain policy. This vulnerability is handled as CVE-2025-12909. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Google Chrome and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Devtools. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect integrity. The summary by CVE is:

Insufficient policy enforcement in Devtools in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to leak cross-origin data via Devtools. (Chromium security severity: Low)

It is possible to read the advisory at chromereleases.googleblog.com. This vulnerability is known as CVE-2025-12909 since 11/08/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 11/17/2025).

Upgrading to version 140.0.7339.80 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1946). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Fedora Linux
  • SUSE openSUSE
  • Google Chrome
  • Microsoft Edge

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
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: 🔍

0-Day Time: 🔒

Upgrade: Chrome 140.0.7339.80

Timelineinfo

11/08/2025 Advisory disclosed
11/08/2025 +0 days CVE reserved
11/08/2025 +0 days VulDB entry created
11/17/2025 +9 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 361116
Status: Confirmed

CVE: CVE-2025-12909 (🔒)
GCVE (CVE): GCVE-0-2025-12909
GCVE (VulDB): GCVE-100-331591
CERT Bund: WID-SEC-2025-1946 - Google Chrome/Microsoft Edge: Mehrere Schwachstellen

Entryinfo

Created: 11/08/2025 07:52
Updated: 11/17/2025 08:06
Changes: 11/08/2025 07:52 (57), 11/17/2025 08:06 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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