# CVE-2025-58063

## Summary

- **CVE ID:** CVE-2025-58063
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
- **CWE:** CWE-681
- **Published:** Sep 9, 2025
- **Last Modified:** Mar 13, 2026

## Description

CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.

## Affected Products

- coredns — coredns (>= 1.2.0, < 1.12.4)

## References

- [CNA](https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9)
- [CNA](https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 34.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._