SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2012-4415

Stack-based buffer overflow in the guac_client_plugin_open function in libguac in Guacamole before 0.6.3 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long protocol name.

EXPLOIT ✓HIGH 7.5EPSS 13.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Stack-based buffer overflow in the guac_client_plugin_open function in libguac in Guacamole before 0.6.3 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long protocol name.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
13.58% probability · 96th percentile
Public exploits
1 in Exploit-DB · verified · first 11 September 2012
CISA KEV
Not listed
Weakness
CWE-119
Affected
fedoraproject/fedora · guac-dev/guacamole
Source
secalert@redhat.com
EPSS trend
0%8%15%4 November 2026: 13.58%4 November 20264 November 2026

EPSS 13.6% since 4 November 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-37788source ↗libguac - Remote Buffer Overflowlinux · Michael Jumperremote11 September 2012yes

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