CVE-2023-28455
Technitium Dnsserver ≤ 11.0.2
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-28455 is a high-severity Network Amplification (CWE-406) vulnerability in Technitium Dnsserver. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 43th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SC-5 (Denial-of-service Protection) and SI-4 (System Monitoring) — see the control section below for these in your framework.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-32136
Vulnerability Data
An issue was discovered in Technitium through 11.0.2. The forwarding mode enables attackers to create a query loop using Technitium resolvers, launching amplification attacks and causing potential DoS.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Denial-of-service protection directly requires mechanisms to limit excessive outbound traffic volume that amplification attacks exploit.
System monitoring detects anomalous traffic volumes indicative of amplification after the weakness is present.
Boundary protection at managed interfaces enforces controls on communications volume and flow that can stop amplification.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Logging provides visibility into high-volume traffic but does not itself limit or control it.
Monitoring activities can detect anomalous traffic volumes, yet detection alone does not enforce control.
Network security controls include traffic filtering and rate-limiting that prevent amplification attacks.
Capacity management directly limits excessive outbound traffic that an actor could otherwise trigger.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-406, a class-level weakness, and none of its children carries one either.