Lyrie
Critical CVE
CVSS 9.33 sources verified·1 min read
By Lyrie Threat Intelligence·6/16/2026

CRITICAL: CVE-2008-5524 (CVSS 9.3) — quickheal cat quickheal

CVE: CVE-2008-5524

CVSS: 9.3 (2.0) — AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: CRITICAL

Status: Critical advisory

Affected

  • quickheal cat quickheal
  • microsoft internet explorer

Summary

CAT-QuickHeal 10.00 and possibly 9.50, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit.

Verified Sources

References

  • http://securityreason.com/securityalert/4723
  • http://www.securityfocus.com/archive/1/498995/100/0/threaded
  • http://www.securityfocus.com/archive/1/499043/100/0/threaded
  • https://exchange.xforce.ibmcloud.com/vulnerabilities/47435
  • http://securityreason.com/securityalert/4723
  • http://www.securityfocus.com/archive/1/498995/100/0/threaded
  • http://www.securityfocus.com/archive/1/499043/100/0/threaded
  • https://exchange.xforce.ibmcloud.com/vulnerabilities/47435

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

Validated sources

  1. [1]NVD
  2. [2]GitHub Advisory
  3. [3]MITRE