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.
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.
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| 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:*:* |