SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

EXPLOITHIGH 9.3EPSS 11.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 11.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
11.73% probability · 96th percentile
Public exploits
1 in Exploit-DB · first 29 October 2013
CISA KEV
Not listed
Weakness
CWE-119
Affected
watchguard/fireware
Source
cret@cert.org
EPSS trend
0%8%15%26 October 2026: 11.73%26 October 202626 October 2026

EPSS 11.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-29273source ↗Watchguard Firewall XTM 11.7.4u1 - Remote Buffer Overflowhardware · st3nremote29 October 2013no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.