CVE-2025-43915 — MEDIUM (6.5)

Q: How severe is CVE-2025-43915?

CVE-2025-43915 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-43915?

Check the references section above for vendor advisories and patch information. Affected products include: Linkerd Buoyant, Linkerd Linkerd.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linkerd	Buoyant	>= 2.13.0, <= 2.13.7
Linkerd	Linkerd	< 25.2.1

Related Weaknesses (CWE)

CWE-400

References

https://docs.buoyant.io/security/advisories/2025-01/Vendor Advisory
https://www.buoyant.io/resourcesProduct

FAQ

What is CVE-2025-43915?

CVE-2025-43915 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 f...

How severe is CVE-2025-43915?

CVE-2025-43915 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-43915?

Check the references section above for vendor advisories and patch information. Affected products include: Linkerd Buoyant, Linkerd Linkerd.