CVE-2020-16040

high

Published — · Modified —

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CVSS v3

—

CVSS v4 NEW

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not yet in upstream

VIR risk

9.0

Description

Insufficient data validation in V8 in Google Chrome prior to 87.0.4280.88 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Predictions

Exploit likelihood

90%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-49745 remote multiple

r4j0x00 · 2021-04-06

Google Chrome 86.0.4240 V8 - Remote Code Execution

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_multi/browser/chrome_simplifiedlowering_overflow rank

Google Chrome versions before 87.0.4280.88 integer overflow during SimplfiedLowering phase

Source fetch failed: fetch_error — view the original via the link above.

OS impact

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`87.0.4280.88-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`87.0.4280.88-0.1`
sid	Fixed	`87.0.4280.88-0.1`
forky	Fixed	`87.0.4280.88-0.1`
bullseye	Fixed	`87.0.4280.88-0.1`
bookworm	Fixed	`87.0.4280.88-0.1`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

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