mediumREV. 01
CVE-2020-16040Chrome — Heap Corruption in the JavaScript Engine
Insufficient validation in Chrome's script engine lets a crafted page corrupt memory, the first step of the chain a browser exploit needs.
Read the risk
THE VITAL STATS- CVSS score
- 6.5/ 10 CVSS v3.1
- EPSS probability
- 100% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Not listed
- CVE published
- 2021-01-08
- Exploit published
- Yes
- Confidence
- high
- Kill chain
- execution
- MITRE ATT&CK
- T1203
- Severity
- medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attacker needsA user opens the crafted page
Fixed inChrome 87.0.4280.88
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02Vendor advisorychromereleases.googleblog.comchromereleases.googleblog.com
- 03Vendor advisorycrbug.comcrbug.com
- 04Exploitpacketstormsecurity.compacketstormsecurity.com
- 05Exploitpacketstormsecurity.compacketstormsecurity.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-08-07 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.