CVE-2008-0852

Exp

freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.

Published: 2008-02-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2008-0852 is rated High Exploit Risk (67/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.23%, 93th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: 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-2008-0852

EDB-ID Source Kind Published Link
31218 exploit_db edb 2008-02-17 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2008-0852

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 6.62% 6.23% -0.38%
2 2026-01-29 5.38% 6.62% +1.24%
3 2025-04-12 5.38%

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-0852

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2008-0852

Affected software / configurations for CVE-2008-0852

Vendor Product Version Raw CPE
freesshd freesshd <= 1.2 cpe:2.3:a:freesshd:freesshd:*:*:*:*:*:*:*:*

References for CVE-2008-0852

cvelogic Threat Intelligence