CVE-2021-3516
HIGH 7.8EPSS 2.0%
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
- Affected
- libxml2
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 2.04% chance of exploitation in the next 30 days, 81st percentile
- Published
- 2021-06-01
- Updated
- 2026-10-14
Proof-of-concept exploits (1)
Security advisories
- https://bugzilla.redhat.com/show_bug.cgi?id=1954225
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539
- https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
- https://security.gentoo.org/glsa/202107-05
- https://security.netapp.com/advisory/ntap-20210716-0005
- https://www.oracle.com/security-alerts/cpujan2022.html