CVE-2021-30535: fedoraproject fedora Double Free
Vulnerability summary
CVE-2021-30535 is a high (CVSS 8.8) Double Free vulnerability in fedoraproject fedora. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 66.3% 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 4 · Related 4Timeline
- 07-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Double free in ICU in Google Chrome prior to 91.0.4472.77 allowed a remote attacker 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
1.13%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.13% 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.
Alpine2 products
- chromium< 91.0.4472.77-r0
- qt5-qtwebengine< 5.15.3_git20211006-r0 | < 5.15.3_git20210510-r2
Debian2 products
- chromium< 93.0.4577.82-1
- icu< 67.1-7
Ubuntu2 products
- chromium-browser< 91.0.4472.77-0ubuntu0.18.04.1
- icu< 66.1-2ubuntu2.1
Fedoraproject1 product
- fedoraEOL33 | 34
Google1 product
- chrome≥ unspecified, < 91.0.4472.77 | < 91.0.4472.77
Mageia1 product
- icu< 68.2-1.1.mga8
6 vendors · 9 products
References
12 links- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.htmlX Refsource MISCWEBRelease NotesVendor Advisory
