CVE-2013-6021

Exp

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.

Published: 2013-10-19 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6021 is rated High Exploit Risk (91.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 54.03%, 98th percentile). 4 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +6.44% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-6021

EDB-ID Source Kind Published Link
29273 exploit_db edb 2013-10-29 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-6021

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-19 47.60% 54.03% +6.44%
2 2025-06-04 49.20% 47.60% -1.60%
3 2025-03-30 — 49.20% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6021

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2013-6021

Affected software / configurations for CVE-2013-6021

Vendor Product Version Raw CPE
watchguard fireware <= 11.7.4 cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
watchguard fireware 11.0.2 cpe:2.3:o:watchguard:fireware:11.0.2:*:*:*:*:*:*:*
watchguard fireware 11.1 cpe:2.3:o:watchguard:fireware:11.1:*:*:*:*:*:*:*
watchguard fireware 11.2.3 cpe:2.3:o:watchguard:fireware:11.2.3:*:*:*:*:*:*:*
watchguard fireware 11.3 cpe:2.3:o:watchguard:fireware:11.3:*:*:*:*:*:*:*
watchguard fireware 11.3.6 cpe:2.3:o:watchguard:fireware:11.3.6:*:*:*:*:*:*:*
watchguard fireware 11.4 cpe:2.3:o:watchguard:fireware:11.4:*:*:*:*:*:*:*
watchguard fireware 11.4.2 cpe:2.3:o:watchguard:fireware:11.4.2:*:*:*:*:*:*:*
watchguard fireware 11.5.1 cpe:2.3:o:watchguard:fireware:11.5.1:*:*:*:*:*:*:*
watchguard fireware 11.5.3 cpe:2.3:o:watchguard:fireware:11.5.3:*:*:*:*:*:*:*
watchguard fireware 11.6.6 cpe:2.3:o:watchguard:fireware:11.6.6:*:*:*:*:*:*:*
watchguard fireware 11.7.2 cpe:2.3:o:watchguard:fireware:11.7.2:*:*:*:*:*:*:*

References for CVE-2013-6021

cvelogic Threat Intelligence