CVE-2021-30601: fedoraproject fedora Use After Free
Vulnerability summary
CVE-2021-30601 is a high (CVSS 8.8) Use After Free vulnerability in fedoraproject fedora. EPSS estimates a 1.94% chance of exploitation in the next 30 days, higher than 80.1% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 26-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Use after free in Extensions API in Google Chrome prior to 92.0.4515.159 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
CVSS metrics
5 scores · 4 sources · 2 versions- 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
- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.94%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.94% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (crbug.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- chromium< 92.0.4515.159-r0
Debian1 product
- chromium< 93.0.4577.82-1
Fedoraproject1 product
- fedoraEOL33 | 34 | 35
Google1 product
- chrome≥ unspecified, < 92.0.4515.159 | < 92.0.4515.159
Ubuntu1 product
- chromium-browser< 92.0.4515.159-0ubuntu0.18.04.1
5 vendors · 5 products
References
9 links- chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop.htmlX Refsource MISCREPORTRelease NotesVendor Advisory
- crbug.com/1234009X Refsource MISCREPORTExploitIssue TrackingPatchPermissions RequiredVendor Advisory
