CVE-2013-7049

Stack-based buffer overflow in fish.cpp in the Fish plugin for ZNC, as used in ZNC for Windows (znc-msvc) 0.206 and earlier, allows remote attackers to cause a denial of service (crash) via a long string in a DH1080_INIT message.

Published: 2013-12-23 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-7049 is rated Moderate Risk (43.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.07%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-7049

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 2025-03-21 1.42% 1.07% -0.35%
2 2025-03-17 3.54% 1.42% -2.12%
3 2023-03-07 3.54%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-7049

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2013-7049

Affected software / configurations for CVE-2013-7049

Vendor Product Version Raw CPE
znc znc-msvc <= 0.206 cpe:2.3:a:znc:znc-msvc:*:-:-:*:-:windows:*:*
znc znc-msvc 0.076 cpe:2.3:a:znc:znc-msvc:0.076:-:-:*:-:windows:*:*
znc znc-msvc 0.077 cpe:2.3:a:znc:znc-msvc:0.077:-:-:*:-:windows:*:*
znc znc-msvc 0.078 cpe:2.3:a:znc:znc-msvc:0.078:-:-:*:-:windows:*:*
znc znc-msvc 0.079 cpe:2.3:a:znc:znc-msvc:0.079:-:-:*:-:windows:*:*
znc znc-msvc 0.080 cpe:2.3:a:znc:znc-msvc:0.080:-:-:*:-:windows:*:*
znc znc-msvc 0.089 cpe:2.3:a:znc:znc-msvc:0.089:-:-:*:-:windows:*:*
znc znc-msvc 0.090 cpe:2.3:a:znc:znc-msvc:0.090:-:-:*:-:windows:*:*
znc znc-msvc 0.093 cpe:2.3:a:znc:znc-msvc:0.093:-:-:*:-:windows:*:*
znc znc-msvc 0.094 cpe:2.3:a:znc:znc-msvc:0.094:-:-:*:-:windows:*:*
znc znc-msvc 0.095 cpe:2.3:a:znc:znc-msvc:0.095:-:-:*:-:windows:*:*
znc znc-msvc 0.097 cpe:2.3:a:znc:znc-msvc:0.097:-:-:*:-:windows:*:*
znc znc-msvc 0.098 cpe:2.3:a:znc:znc-msvc:0.098:-:-:*:-:windows:*:*
znc znc-msvc 0.202 cpe:2.3:a:znc:znc-msvc:0.202:-:-:*:-:windows:*:*

References for CVE-2013-7049

cvelogic Threat Intelligence