CVE-2009-4810

Exp

The Secure Remote Password (SRP) implementation in Samhain before 2.5.4 does not check for a certain zero value where required by the protocol, which allows remote attackers to bypass authentication via crafted input.

Published: 2010-04-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4810 is rated High Exploit Risk (76.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.56%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.10% 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-2009-4810

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4810

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 0.46% 2.56% +2.10%
2 2025-03-30 0.88% 0.46% -0.42%
3 2025-03-29 — 0.88% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4810

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2009-4810

OS Trackers for CVE-2009-4810

vendor priority summary link
debian unimportant CVE-2009-4810 unimportant priority: Debian including 1 source packages (samhain), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-4810
ubuntu medium CVE-2009-4810 medium priority: Ubuntu including 1 source packages (samhain), 14 status rows across 14 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): not-affected 7, ignored 6, released 1. https://ubuntu.com/security/CVE-2009-4810

Affected software / configurations for CVE-2009-4810

Vendor Product Version Raw CPE
samhain_labs samhain <= 2.5.3 cpe:2.3:a:samhain_labs:samhain:*:*:*:*:*:*:*:*
samhain_labs samhain 1.8.9 cpe:2.3:a:samhain_labs:samhain:1.8.9:*:*:*:*:*:*:*
samhain_labs samhain 1.8.10 cpe:2.3:a:samhain_labs:samhain:1.8.10:*:*:*:*:*:*:*
samhain_labs samhain 1.8.10 cpe:2.3:a:samhain_labs:samhain:1.8.10:a:*:*:*:*:*:*
samhain_labs samhain 1.8.10 cpe:2.3:a:samhain_labs:samhain:1.8.10:b:*:*:*:*:*:*
samhain_labs samhain 1.8.11 cpe:2.3:a:samhain_labs:samhain:1.8.11:*:*:*:*:*:*:*
samhain_labs samhain 1.8.12 cpe:2.3:a:samhain_labs:samhain:1.8.12:*:*:*:*:*:*:*
samhain_labs samhain 1.8.12 cpe:2.3:a:samhain_labs:samhain:1.8.12:a:*:*:*:*:*:*
samhain_labs samhain 1.8.12 cpe:2.3:a:samhain_labs:samhain:1.8.12:b:*:*:*:*:*:*
samhain_labs samhain 2.0.0 cpe:2.3:a:samhain_labs:samhain:2.0.0:*:*:*:*:*:*:*
samhain_labs samhain 2.0.1 cpe:2.3:a:samhain_labs:samhain:2.0.1:*:*:*:*:*:*:*
samhain_labs samhain 2.0.2 cpe:2.3:a:samhain_labs:samhain:2.0.2:*:*:*:*:*:*:*
samhain_labs samhain 2.0.2 cpe:2.3:a:samhain_labs:samhain:2.0.2:a:*:*:*:*:*:*
samhain_labs samhain 2.0.3 cpe:2.3:a:samhain_labs:samhain:2.0.3:*:*:*:*:*:*:*
samhain_labs samhain 2.0.4 cpe:2.3:a:samhain_labs:samhain:2.0.4:*:*:*:*:*:*:*
samhain_labs samhain 2.0.5 cpe:2.3:a:samhain_labs:samhain:2.0.5:*:*:*:*:*:*:*
samhain_labs samhain 2.0.5 cpe:2.3:a:samhain_labs:samhain:2.0.5:a:*:*:*:*:*:*
samhain_labs samhain 2.0.5 cpe:2.3:a:samhain_labs:samhain:2.0.5:b:*:*:*:*:*:*
samhain_labs samhain 2.0.6 cpe:2.3:a:samhain_labs:samhain:2.0.6:*:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:*:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:a:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:b:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:c:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:d:*:*:*:*:*:*
samhain_labs samhain 2.0.7 cpe:2.3:a:samhain_labs:samhain:2.0.7:e:*:*:*:*:*:*
samhain_labs samhain 2.0.8 cpe:2.3:a:samhain_labs:samhain:2.0.8:*:*:*:*:*:*:*
samhain_labs samhain 2.0.9 cpe:2.3:a:samhain_labs:samhain:2.0.9:*:*:*:*:*:*:*
samhain_labs samhain 2.0.10 cpe:2.3:a:samhain_labs:samhain:2.0.10:*:*:*:*:*:*:*
samhain_labs samhain 2.0.10 cpe:2.3:a:samhain_labs:samhain:2.0.10:a:*:*:*:*:*:*
samhain_labs samhain 2.1.0 cpe:2.3:a:samhain_labs:samhain:2.1.0:*:*:*:*:*:*:*
samhain_labs samhain 2.1.1 cpe:2.3:a:samhain_labs:samhain:2.1.1:*:*:*:*:*:*:*
samhain_labs samhain 2.1.1 cpe:2.3:a:samhain_labs:samhain:2.1.1:a:*:*:*:*:*:*
samhain_labs samhain 2.1.2 cpe:2.3:a:samhain_labs:samhain:2.1.2:*:*:*:*:*:*:*
samhain_labs samhain 2.1.3 cpe:2.3:a:samhain_labs:samhain:2.1.3:*:*:*:*:*:*:*
samhain_labs samhain 2.2.0 cpe:2.3:a:samhain_labs:samhain:2.2.0:*:*:*:*:*:*:*
samhain_labs samhain 2.2.1 cpe:2.3:a:samhain_labs:samhain:2.2.1:*:*:*:*:*:*:*
samhain_labs samhain 2.2.1 cpe:2.3:a:samhain_labs:samhain:2.2.1:a:*:*:*:*:*:*
samhain_labs samhain 2.2.1 cpe:2.3:a:samhain_labs:samhain:2.2.1:b:*:*:*:*:*:*
samhain_labs samhain 2.2.1 cpe:2.3:a:samhain_labs:samhain:2.2.1:c:*:*:*:*:*:*
samhain_labs samhain 2.2.2 cpe:2.3:a:samhain_labs:samhain:2.2.2:*:*:*:*:*:*:*
samhain_labs samhain 2.2.3 cpe:2.3:a:samhain_labs:samhain:2.2.3:*:*:*:*:*:*:*
samhain_labs samhain 2.2.4 cpe:2.3:a:samhain_labs:samhain:2.2.4:*:*:*:*:*:*:*
samhain_labs samhain 2.2.5 cpe:2.3:a:samhain_labs:samhain:2.2.5:*:*:*:*:*:*:*
samhain_labs samhain 2.2.6 cpe:2.3:a:samhain_labs:samhain:2.2.6:*:*:*:*:*:*:*
samhain_labs samhain 2.3.0 cpe:2.3:a:samhain_labs:samhain:2.3.0:*:*:*:*:*:*:*
samhain_labs samhain 2.3.0 cpe:2.3:a:samhain_labs:samhain:2.3.0:a:*:*:*:*:*:*
samhain_labs samhain 2.3.1 cpe:2.3:a:samhain_labs:samhain:2.3.1:*:*:*:*:*:*:*
samhain_labs samhain 2.3.1 cpe:2.3:a:samhain_labs:samhain:2.3.1:a:*:*:*:*:*:*
samhain_labs samhain 2.3.2 cpe:2.3:a:samhain_labs:samhain:2.3.2:*:*:*:*:*:*:*
samhain_labs samhain 2.3.3 cpe:2.3:a:samhain_labs:samhain:2.3.3:*:*:*:*:*:*:*
samhain_labs samhain 2.3.4 cpe:2.3:a:samhain_labs:samhain:2.3.4:*:*:*:*:*:*:*
samhain_labs samhain 2.3.5 cpe:2.3:a:samhain_labs:samhain:2.3.5:*:*:*:*:*:*:*
samhain_labs samhain 2.3.6 cpe:2.3:a:samhain_labs:samhain:2.3.6:*:*:*:*:*:*:*
samhain_labs samhain 2.3.7 cpe:2.3:a:samhain_labs:samhain:2.3.7:*:*:*:*:*:*:*
samhain_labs samhain 2.3.8 cpe:2.3:a:samhain_labs:samhain:2.3.8:*:*:*:*:*:*:*
samhain_labs samhain 2.4.0 cpe:2.3:a:samhain_labs:samhain:2.4.0:*:*:*:*:*:*:*
samhain_labs samhain 2.4.0 cpe:2.3:a:samhain_labs:samhain:2.4.0:a:*:*:*:*:*:*
samhain_labs samhain 2.4.1 cpe:2.3:a:samhain_labs:samhain:2.4.1:*:*:*:*:*:*:*
samhain_labs samhain 2.4.1 cpe:2.3:a:samhain_labs:samhain:2.4.1:a:*:*:*:*:*:*
samhain_labs samhain 2.4.2 cpe:2.3:a:samhain_labs:samhain:2.4.2:*:*:*:*:*:*:*
samhain_labs samhain 2.4.3 cpe:2.3:a:samhain_labs:samhain:2.4.3:*:*:*:*:*:*:*
samhain_labs samhain 2.4.4 cpe:2.3:a:samhain_labs:samhain:2.4.4:*:*:*:*:*:*:*
samhain_labs samhain 2.4.5 cpe:2.3:a:samhain_labs:samhain:2.4.5:*:*:*:*:*:*:*
samhain_labs samhain 2.4.5 cpe:2.3:a:samhain_labs:samhain:2.4.5:a:*:*:*:*:*:*
samhain_labs samhain 2.4.6 cpe:2.3:a:samhain_labs:samhain:2.4.6:*:*:*:*:*:*:*
samhain_labs samhain 2.4.6 cpe:2.3:a:samhain_labs:samhain:2.4.6:a:*:*:*:*:*:*
samhain_labs samhain 2.5.0 cpe:2.3:a:samhain_labs:samhain:2.5.0:*:*:*:*:*:*:*
samhain_labs samhain 2.5.1 cpe:2.3:a:samhain_labs:samhain:2.5.1:*:*:*:*:*:*:*
samhain_labs samhain 2.5.2 cpe:2.3:a:samhain_labs:samhain:2.5.2:*:*:*:*:*:*:*
samhain_labs samhain 2.5.2 cpe:2.3:a:samhain_labs:samhain:2.5.2:a:*:*:*:*:*:*
samhain_labs samhain 2.5.2 cpe:2.3:a:samhain_labs:samhain:2.5.2:b:*:*:*:*:*:*
samhain_labs samhain 2.6.4 cpe:2.3:a:samhain_labs:samhain:2.6.4:*:*:*:*:*:*:*

References for CVE-2009-4810

cvelogic Threat Intelligence