CVE-2025-59023 PUBLISHED

Crafted delegations or IP fragments can poison cached delegations in Recursor

Assigner: OX
Reserved: 08.09.2025 Published: 09.02.2026 Updated: 09.02.2026

Crafted delegations or IP fragments can poison cached delegations in Recursor.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
CVSS Score: 8.2

Product Status

Vendor PowerDNS
Product Recursor
Versions Default: unaffected
  • affected from 5.3.0 to 5.3.1 (excl.)
  • affected from 5.2.0 to 5.2.6 (excl.)
  • affected from 5.1.0 to 5.1.8 (excl.)

Credits

  • Yuxiao Wu from Tsinghua University finder
  • Yunyi Zhang from Tsinghua University finder
  • Baojun Liu from Tsinghua University finder
  • Haixin Duan from Tsinghua University finder
  • Shiming Liu from Network and Information Security Lab, Tsinghua University finder

References

Problem Types

  • Insufficient Verification of Data Authenticity CWE