CVE-2025-12909

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)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
ChromeCNA
---
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CISA-ADPADP
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
VendorProductVersion
googlechrome
𝑥
< 140.0.7339.80
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
chromium
bullseye (security)
vulnerable
bullseye
vulnerable
bookworm
vulnerable
bookworm (security)
143.0.7499.109-1~deb12u1
fixed
trixie
142.0.7444.134-1~deb13u1
fixed
trixie (security)
143.0.7499.109-1~deb13u1
fixed
forky
143.0.7499.109-1
fixed
sid
143.0.7499.109-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
chromium-browser
questing
not-affected
plucky
not-affected
noble
not-affected
jammy
not-affected
Common Weakness Enumeration
References
https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/361116749