CVE-2026-121217

high

Description

Use after free in Streaming in Google Chrome prior to 157.0.8103.38 allowed an adjacent attacker to execute arbitrary code inside the sandbox via crafted network traffic. (Chromium security severity: Low)

References

https://issues.chromium.org/issues/500600456

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-116318

https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html

Details

Source: Mitre, NVD

Published: 2026-11-03

Updated: 2026-11-05

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00129