kapetan dns Request.cs entropy
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
A vulnerability was found in kapetan dns up to 6.1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file DNS/Protocol/Request.cs. The manipulation leads to insufficient entropy in prng. The attack may be launched remotely. Upgrading to version 7.0.0 is able to address this issue. The name of the patch is cf7105aa2aae90d6656088fe5a8ee1d5730773b6. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216188.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kapetan | dns | 6.0; 6.1 | — | No fix listed | CNA |
| — | DNS (NuGet) | before 7.0.0 | 7.0.0 | Patch available | GHSA-g3wc-xv93-445q |
- dns Vendorkapetan Affected 6.0; 6.1 Fixed in — No fix listed CNA
- DNS (NuGet) Vendor— Affected before 7.0.0 Fixed in 7.0.0 Patch available GHSA-g3wc-xv93-445q
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kapetan_dns_project:kapetan_dns:*:*:*:*:*:*:*:* | before 7.0.0 | Vulnerable | Kapetan Dns Project |
- cpe:2.3:a:kapetan_dns_project:kapetan_dns:*:*:*:*:*:*:*:* Versions before 7.0.0 Vulnerable ·Kapetan Dns Project
Remediation
- Fix · GHSA-g3wc-xv93-445q DNS (NuGet) Fixed in 7.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4248
- 2026-10-03 Alias added: GHSA-g3wc-xv93-445q
References
Sources
- CVE-2021-4248 · CVE Program
- CVE-2021-4248 · NVD
- FIRST EPSS
- GHSA-g3wc-xv93-445q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences