What’s Vulnerable › Vulnerabilities
CVE-2025-43915
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-05-05 · updated 2026-06-17
- Weakness: CWE-400
Description
In Linkerd edge releases before edge-25.2.1, and Buoyant Enterprise for Linkerd releases 2.13.0–2.13.7, 2.14.0–2.14.10, 2.15.0–2.15.7, 2.16.0–2.16.4, and 2.17.0–2.17.1, resource exhaustion can occur for Linkerd proxy metrics.
Affected products
- linkerd Buoyant: from 2.13.0 through 2.13.7; from 2.14.0 through 2.14.10; from 2.15.0 through 2.15.7; from 2.16.0 before 2.16.5; from 2.17.0 before 2.17.2 — fixed in 2.16.5, 2.17.2
- Linkerd: before 25.2.1 — fixed in 25.2.1
How to fix
Upgrade to a fixed version: linkerd Buoyant 2.16.5, 2.17.2; Linkerd 25.2.1. Check the vendor advisory for mitigations.
References
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