VulnerabilityModified
CVE-2021-30623
Chromium: CVE-2021-30623 Use after free in Bookmarks
HIGH 8.8EPSS 3.97%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Chromium: CVE-2021-30623 Use after free in Bookmarks
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.97% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- fedoraproject/fedora · microsoft/edge · microsoft/edge chromium
- Source
- chrome-cve-admin@google.com
EPSS 4.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30623Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30623Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.