All vulnerabilities

Servers and applications

CVE-2021-1252

A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to…

Severity
High 7.5
Published
8 Apr 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
ClamAVServers and applications · cpe:a:clamav:clamav
  • Version 0.103.0
  • Version 0.103.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-1252
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-1252