UpHeron
All vulnerabilities

Servers and applications

CVE-2021-3518

There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.

Severity
High 8.8
Published
18 May 2021
Last changed
14 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.9.11
Sources
NVD

Affected software

SoftwareAffected versions
libxml2Servers and applications · cpe:a:xmlsoft:libxml2
  • Every version before 2.9.11

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-3518
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-3518