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

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.

Published: 2025-09-09 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-58063 is rated Moderate Risk (40/100): CVSS High severity, with low exploitation likelihood (EPSS 0.41%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-58063

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.41% +0.36%
2 2025-10-11 0.04% 0.05% +0.01%
3 2025-09-10 — 0.04% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-58063

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 4.2 [email protected]

Weakness enumeration for CVE-2025-58063

GitHub Security Advisory for CVE-2025-58063

GHSA-93mf-426m-g6x9 · Severity: high · Ecosystem: go — CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion

OS Trackers for CVE-2025-58063

vendor priority summary link
alpine high CVE-2025-58063: 1 source package rows (coredns); 29 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 29. https://security.alpinelinux.org/vuln/CVE-2025-58063
redhat medium — https://access.redhat.com/security/cve/CVE-2025-58063
suse medium CVE-2025-58063 severity moderate: SUSE including 7 source package names (coredns-1.12.4-2.1, coredns-1.12.4-bp156.4.9.1, …), 9 product×package rows across 4 product lines (SUSE Package Hub 15 SP6, openSUSE Leap 15.6, openSUSE Leap 16.0, openSUSE Tumbleweed): Fixed 9. https://www.suse.com/security/cve/CVE-2025-58063/

Affected software / configurations for CVE-2025-58063

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-58063

cvelogic Threat Intelligence