7.1

CVE-2025-58063: CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion

Deferred
AliasesCGA-29g8-pr2r-9hvrCGA-3j73-w8w9-7p5mCGA-42q7-cvxh-xh38
Published 09-09-2025Last modified 10-09-2025

Vulnerability summary

CVE-2025-58063 is a high (CVSS 7.1) vulnerability in coredns. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.51%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 7
OPENSUSE-SU-2025:15564-1OPENSUSE-SU-2026:20099-1OPENSUSE-SU-2026:21483-1SUSE-SU-2025:03289-1CGA-3V87-HWJ5-GF23CGA-RQF8-W4FJ-RHCQ

Timeline

  1. 09-09-2025
    PublishedVulnerability first disclosed.
  2. 10-09-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

Increase +0.09 pp

From 0.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard22 products
  • cloudflared< 2026.2.0-r0
  • cloudflared-fips< 2026.2.0-r0
  • eks-distro-coredns-1.29< 1.29.53-r1
  • eks-distro-coredns-1.30< 1.30.46-r1
  • eks-distro-coredns-1.31< 1.31.35-r1
Wolfi5 products
  • cloudflared< 2026.2.0-r0
  • juicefs-1.3< 1.3.0-r5
  • juicefs-1.3-compat< 1.3.0-r5
  • k8s_gateway< 1.6.1-r0
  • kubernetes-dns-node-cache< 1.26.5-r1
Coredns1 product
Github.com/coredns1 product
  • coredns≥ 1.2.0, < 1.12.4
Opensuse1 product
  • coredns&distro=openSUSE Tumbleweed< 1.12.4-2.1

5 vendors · 30 products

References

6 links