PT-2026-7151 · Google · Captive Browser

Stebalien · Published 2026-02-09 · Updated 2026-02-09 · CVE-2026-25740

Positive Technologies (AI Summary)

CVSS v4.0

5.8

Medium

Base vector

AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions captive browser versions prior to 25.11

Description The captive browser, a dedicated Chrome instance used for logging into captive portals, contains a flaw. In versions 25.05 and earlier, enabling the programs.captive-browser feature allows any user on the system to execute arbitrary commands with the CAP NET RAW capability. This capability permits binding to privileged ports and spoofing localhost traffic from privileged services.

Recommendations Update to version 25.11 or later.

Exploit

Fix

Weakness Enumeration

CWE-250

Related Identifiers

CVE-2026-25740

GHSA-WC3R-C66X-8XMC

Affected Products

Captive Browser

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25740.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-25740 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25740 · Security Note
• https://github.com/NixOS/nixpkgs/pull/487779 · Note
• https://github.com/NixOS/nixpkgs/pull/487775 · Note
• https://github.com/NixOS/nixpkgs/security/advisories/GHSA-wc3r-c66x-8xmc · Note
• https://t.me/cveNotify/151483 · Telegram Post
• https://twitter.com/CVEnew/status/2020972051872289119 · Twitter Post