CVE-2026-45557 — Technitium DNS Server aggressively tries to fetch missing
CVE-2026-45557 — Technitium DNS Server aggressively tries to fetch missing RRSIG records or mismatched DNSKEY records. An attacker in control of a domain can cause a vulnerable system to generate excessive network traffic. Fixed in 15.0.
What This Means For You
- If your environment is affected by CWE-405, CWE-406, CWE-770, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-45557 updates and patches.
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-45557 | vulnerability | CVE-2026-45557 |
| CWE-405 | weakness | CWE-405 |
| CWE-406 | weakness | CWE-406 |
| CWE-770 | weakness | CWE-770 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 19, 2026 at 18:16 UTC |
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