CVE-2021-30564: google chrome Out-of-bounds Write
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2021-30564DEBIAN-CVE-2021-30564
Published 03-08-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-30564 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in google chrome. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.6% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.43%
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 7 · Related 7Timeline
- 03-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Heap buffer overflow in WebXR in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.43%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.01 pp
From 1.42% on 19-09-2026
19-09-202619-10-2026
EPSS score1.43%
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< 93.0.4577.82-1
Google1 product
- chrome≥ unspecified, < 91.0.4472.164 | < 91.0.4472.164
Ubuntu1 product
- chromium-browser< 92.0.4515.159-0ubuntu0.18.04.1
3 vendors · 3 products
References
5 links- chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.htmlX Refsource MISCRelease NotesVendor Advisory
