Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay…
Priority LOW 26Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.
Why it matters now
EPSS 0.00973 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:domain_name_relay_daemon_project:domain_name_relay_daemon:2.20.3:*:*:*:*:*:*:* | 2.20.3 | Vulnerable | Domain Name Relay Daemon Project |
- cpe:2.3:a:domain_name_relay_daemon_project:domain_name_relay_daemon:2.20.3:*:*:*:*:*:*:* Versions 2.20.3 Vulnerable ·Domain Name Relay Daemon Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-33993
- 2026-10-03 Alias added: GHSA-5wg5-mm98-g4ph
References
More Domain Name Relay Daemon Project Domain Name Relay Daemon vulnerabilities
- TI-2022-14984 DNRD (aka Domain Name Relay Daemon) 2.20.3 forwards and caches DNS queries with the CD… CVSS 3.1HIGH 7.5
Sources
- CVE-2022-33993 · CVE Program
- CVE-2022-33993 · NVD
- FIRST EPSS
- GHSA-5wg5-mm98-g4ph · GitHub Advisory Database · CC BY 4.0
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