Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because…
Priority LOW 18CWE-706Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00162 5th percentileScored 2026-11-07
Fix Fixed Hickory DNS (Hickory Project): 0.26
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 |
|---|---|---|---|---|---|
| Hickory Project | Hickory DNS | 0.1 to before 0.26 | 0.26 | Patch available | CNA |
- Hickory DNS VendorHickory Project Affected 0.1 to before 0.26 Fixed in 0.26 Patch available CNA
Remediation
- Fix · CNA Hickory DNS (Hickory Project) Fixed in 0.26
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42254
- 2026-10-03 Alias added: GHSA-2hfw-w5cw-p4g7
Sources
- CVE-2026-42254 · CVE Program
- CVE-2026-42254 · NVD
- FIRST EPSS
- GHSA-2hfw-w5cw-p4g7 · 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