CVE-2009-1761

Exp

The message engine in CA ARCserve Backup r12.0 and r12.0 SP1 for Windows allows remote attackers to cause a denial of service (crash) via (1) an invalid 0x13 message, which is not properly handled in the ASCORE module, or (2) a 0x3B message with invalid stub data that triggers an RPC marshalling error.

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

CVE-2009-1761 is rated High Exploit Risk (64.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.18%). 2 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-2009-1761

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

Exploit prediction scoring system (EPSS) score for CVE-2009-1761

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 2025-03-30 2.06% 2.18% +0.13%
2 2025-03-29 2.18% 2.06% -0.13%
3 2025-03-17 — 2.18% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1761

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-2009-1761

Affected software / configurations for CVE-2009-1761

Vendor Product Version Raw CPE
ca arcserve_backup r12.0 cpe:2.3:a:ca:arcserve_backup:r12.0:*:windows:*:*:*:*:*
ca arcserve_backup r12.0 cpe:2.3:a:ca:arcserve_backup:r12.0:sp1:windows:*:*:*:*:*

References for CVE-2009-1761

cvelogic Threat Intelligence