CVEvulnerability

CVE-2026-45557

6.9 MEDIUM Published 2026-05-19 Modified 2026-07-24 Official page ↗

Status: Awaiting Analysis
Published: 2026-05-19
Last modified: 2026-07-24
Assigner: 9119a7d8-5eab-497f-8521-727c672e3725
CVSS 4.0 (9119a7d8-5eab-497f-8521-727c672e3725): 6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 (9119a7d8-5eab-497f-8521-727c672e3725): 5.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Weaknesses: CWE-405, CWE-406, CWE-770

Description

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.

Weakness · CWE (3)

CWE-405 Asymmetric Resource Consumption (Amplification) weakness
CWE-406 Insufficient Control of Network Message Volume (Network Amplification) weakness
CWE-770 Allocation of Resources Without Limits or Throttling weakness

References

https://github.com/TechnitiumSoftware/DnsServer/blo/master/CHANGELOG.md#version-150 github.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-138-02.json raw.githubusercontent.com
https://www.cve.org/CVERecord?id=CVE-2026-45557 www.cve.org

CVE-2026-45557

Description

Related

Weakness · CWE (3)

References