CVE-2008-6899

Exp

Multiple buffer overflows in freeSSHd 1.2.1 allow remote authenticated users to cause a denial of service (crash) and execute arbitrary code via a long (1) open, (2) unlink, (3) mkdir, (4) rmdir, or (5) stat SFTP command.

Published: 2009-08-05 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-6899 is rated High Exploit Risk (78/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.29%, 91th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). 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-2008-6899

EDB-ID Source Kind Published Link
8295 exploit_db edb 2009-03-27 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2008-6899

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 11.28% 5.29% -5.99%
2 2026-02-21 10.80% 11.28% +0.48%
3 2025-12-25 — 10.80% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-6899

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2008-6899

Affected software / configurations for CVE-2008-6899

Vendor Product Version Raw CPE
freesshd freesshd 1.2.1 cpe:2.3:a:freesshd:freesshd:1.2.1:*:*:*:*:*:*:*

References for CVE-2008-6899

cvelogic Threat Intelligence