Use After Free in Webkitgtk

CVE-2021-45482

In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability than CVE-2021-30889.

Vulnerability class: Use-After-Free

EPSS: 0.014 (70.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Webkitgtk
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-45482?: CVE-2021-45482 is a medium-severity vulnerability in Webkitgtk, classified under Use After Free. CVSS score: 6.5/10. Published 2021-12-25.
How severe is CVE-2021-45482?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-45482 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.