CVE-2006-0855

Exp

Stack-based buffer overflow in the fullpath function in misc.c for zoo 2.10 and earlier, as used in products such as Barracuda Spam Firewall, allows user-assisted attackers to execute arbitrary code via a crafted ZOO file that causes the combine function to return a longer string than expected.

Published: 2006-02-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-0855 is rated High Exploit Risk (69.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.44%, 90th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.22% 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-2006-0855

EDB-ID Source Kind Published Link
— 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-2006-0855

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 2026-06-15 2.22% 4.44% +2.22%
2 2025-11-30 1.96% 2.22% +0.26%
3 2025-03-30 — 1.96% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-0855

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2006-0855

OS Trackers for CVE-2006-0855

vendor priority summary link
gentoo normal CVE-2006-0855: 1 GLSA(s) (200603-05), 1 atom(s) (app-arch/zoo); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-0855
ubuntu medium CVE-2006-0855 medium priority: Ubuntu including 1 source packages (zoo), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2006-0855

Affected software / configurations for CVE-2006-0855

Vendor Product Version Raw CPE
rahul_dhesi zoo <= 2.10 cpe:2.3:a:rahul_dhesi:zoo:*:*:*:*:*:*:*:*

References for CVE-2006-0855

URL Tags
http://archives.neohapsis.com/archives/bugtraq/2006-04/0061.html Exploit Vendor Advisory
http://secunia.com/advisories/19002 Vendor Advisory
http://secunia.com/advisories/19130 Vendor Advisory
http://secunia.com/advisories/19148 Vendor Advisory
http://secunia.com/advisories/19166 Patch Vendor Advisory
http://secunia.com/advisories/19408 Vendor Advisory
http://secunia.com/advisories/19514 Patch Vendor Advisory
http://securityreason.com/securityalert/546
http://securitytracker.com/id?1015668
http://securitytracker.com/id?1015866 Patch
http://www.debian.org/security/2006/dsa-991 Patch Vendor Advisory
http://www.gentoo.org/security/en/glsa/glsa-200603-05.xml Patch Vendor Advisory
http://www.guay-leroux.com/projects/barracuda-advisory-ZOO.txt Exploit Vendor Advisory
http://www.guay-leroux.com/projects/zoo-advisory.txt Exploit Vendor Advisory
http://www.novell.com/linux/security/advisories/2006_05_sr.html Vendor Advisory
http://www.novell.com/linux/security/advisories/2006_06_sr.html Vendor Advisory
http://www.securityfocus.com/archive/1/425887/100/0/threaded
http://www.securityfocus.com/bid/16790
http://www.vupen.com/english/advisories/2006/0705 Vendor Advisory
http://www.vupen.com/english/advisories/2006/1220 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/24904
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