CVE-2013-6021
Buffer overflow in WGagent in WatchGuard WSM and Fireware before 11.8 allows remote attackers to...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2013-6021- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2013-6021- Updated
- 2026-11-02
EUVDEUVD-2013-5851 No score
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.
- Record
EUVD-2013-5851- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cvrh-vhwc-w6wr No score
Buffer overflow in WGagent in WatchGuard WSM and Fireware before 11.8 allows remote attackers to...
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.
- Record
GHSA-cvrh-vhwc-w6wr- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Watchguard Firewall XTM 11.7.4u1 - Remote Buffer Overflow | 2013-10-29 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-6021 is a high vulnerability (CVSS 9.3) in Watchguard Fireware, published October 19, 2013. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.7%, the 96th percentile. No source names a fixed version.
References
funoverip.net/2013/10/watchguard-cve-2013-6021-stack-based-buffer-overflow-exploit
exploit-db.com/exploits/29273
osvdb.org/98752
watchguardsecuritycenter.com/2013/10/17/xtm-11-8-secfixes
securityfocus.com/bid/63227
kb.cert.org/vuls/id/233990
nvd.nist.gov/vuln/detail/CVE-2013-6021
github.com/advisories/GHSA-cvrh-vhwc-w6wr