CVE-2018-18342

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

Execution of user supplied Javascript during object deserialization can update object length leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-18342

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201812-2

OS impact

OSVersionStatusFixed in
arch archfixed71.0.3578.80-1
debian debianbookwormfixed71.0.3578.80-1
debian debianbullseyefixed71.0.3578.80-1
debian debianforkyfixed71.0.3578.80-1
debian debiansidfixed71.0.3578.80-1
debian debiantrixiefixed71.0.3578.80-1

References

Verify integrity in audit chain (admin only). AS-IS.