CVE-2020-16021: google chrome Race Condition
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-16021DEBIAN-CVE-2020-16021
Published 08-01-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-16021 is a high (CVSS 7.5) Race Condition vulnerability in google chrome. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.64%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 08-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Race in image burner in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to perform OS-level privilege escalation via a malicious file.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 5.1Preferred score · NVD (NIST)
AV:N/AC:H/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.64%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.01 pp
From 0.63% on 21-09-2026
21-09-202621-10-2026
EPSS score0.64%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- chromium< 87.0.4280.88-0.1
Google1 product
- chrome≥ unspecified, < 87.0.4280.66 | < 87.0.4280.66
Ubuntu1 product
- chromium-browser< 87.0.4280.66-0ubuntu0.16.04.1 | < 87.0.4280.66-0ubuntu0.18.04.1
3 vendors · 3 products
References
5 links- chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_17.htmlX Refsource MISCRelease NotesVendor Advisory