CVE-2020-16040: google chrome Improper Input Validation
Vulnerability summary
CVE-2020-16040 is a medium (CVSS 6.5) Improper Input Validation vulnerability in google chrome. EPSS estimates a 99.59% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 4 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 08-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
99.59%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 99.59% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
4 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
Exploit Reference (packetstormsecurity.com)
Maturity: unknown
Google Chrome versions before 87.0.4280.88 integer overflow during SimplfiedLowering phase
exploit/multi/browser/chrome_simplifiedlowering_overflow
Maturity: poc
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian1 product
- chromium< 87.0.4280.88-0.1
Google1 product
- chrome≥ unspecified, < 87.0.4280.88 | < 87.0.4280.88
Ubuntu1 product
- chromium-browser< 89.0.4389.82-0ubuntu0.16.04.1 | < 89.0.4389.82-0ubuntu0.18.04.1
3 vendors · 3 products
References
8 links- chromereleases.googleblog.com/2020/12/stable-channel-update-for-desktop.htmlX Refsource MISCREPORTRelease NotesVendor Advisory
- packetstormsecurity.com/files/162087/Google-Chrome-86.0.4240-V8-Remote-Code-Execution.htmlX Refsource MISCBroken Link
- packetstormsecurity.com/files/162106/Google-Chrome-86.0.4240-V8-Remote-Code-Execution.htmlX Refsource MISCExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/162144/Google-Chrome-SimplfiedLowering-Integer-Overflow.htmlX Refsource MISCExploitThird Party Advisory
