CVE-2021-30629: fedoraproject fedora Use After Free
Vulnerability summary
CVE-2021-30629 is a high (CVSS 8.8) Use After Free vulnerability in fedoraproject fedora. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 59.1% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 08-10-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Use after free in Permissions in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process 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
0.88%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.88% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine2 products
- chromium< 93.0.4577.82-r0
- qt5-qtwebengine< 5.15.3_git20211006-r0
Debian1 product
- chromium< 93.0.4577.82-1
Fedoraproject1 product
- fedoraEOL33 | 35
Google1 product
- chrome≥ unspecified, < 93.0.4577.82 | < 93.0.4577.82
Ubuntu1 product
- chromium-browser< 94.0.4606.71-0ubuntu0.18.04.1
5 vendors · 6 products
References
8 links- chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.htmlX Refsource MISCRelease NotesVendor Advisory
