CVE-2009-0849

Exp

Stack-based buffer overflow in the DtbClsLogin function in NovaStor NovaNET 12 allows remote attackers to (1) execute arbitrary code on Linux platforms via a long username field during backup domain authentication, related to libnnlindtb.so; or (2) cause a denial of service (daemon crash) on Windows platforms via a long username field during backup domain authentication, related to nnwindtb.dll. NOTE: some of these details are obtained from third party information.

Published: 2009-03-09 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-0849 is rated High Exploit Risk (83/100): CVSS High severity, with high exploitation likelihood (EPSS 16.55%, 97th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.18% 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-2009-0849

EDB-ID Source Kind Published Link
32832 exploit_db edb 2009-03-02 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-0849

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 12.36% 16.55% +4.18%
2 2026-04-29 14.53% 12.36% -2.17%
3 2025-09-25 — 14.53% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0849

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-2009-0849

NVD evaluator notes for CVE-2009-0849

Comment: Per: http://secunia.com/advisories/34024 Successful exploitation allows to crash the application on a Windows system and reportedly allows to execute arbitrary code on a Linux system.

Affected software / configurations for CVE-2009-0849

Vendor Product Version Raw CPE
novastor novanet 12 cpe:2.3:a:novastor:novanet:12:*:*:*:*:*:*:*

References for CVE-2009-0849

cvelogic Threat Intelligence