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Servers and applications

CVE-2013-6021

Buffer overflow in WGagent in WatchGuard WSM and Fireware before 11.8 allows remote attackers to execute arbitrary code via a long sessionid value in a cookie.

Severity
High 9.3
Published
19 Oct 2013
Last changed
16 Jun 2026
Added to UpHeron
3 Nov 2026
Exploit chance
12% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
WatchGuard Fireware OSServers and applications · cpe:o:watchguard:fireware
  • Version 11.7.2
  • Version 11.6.6
  • Version 11.5.3
  • Version 11.5.1
All 12 release lines
  • Every version up to 11.7.4
  • Version 11.0.2
  • Version 11.1
  • Version 11.2.3
  • Version 11.3
  • Version 11.3.6
  • Version 11.4
  • Version 11.4.2
  • Version 11.5.1
  • Version 11.5.3
  • Version 11.6.6
  • Version 11.7.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-6021
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-6021