VDB-307442 · CVE-2025-43915 · EUVD-2025-13396

Buoyant Edge up to 2.16.4/2.17.1/25.2.0 Linkerd Proxy Metrics resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Buoyant Edge up to 2.16.4/2.17.1/25.2.0. This vulnerability affects unknown code of the component Linkerd Proxy Metrics Handler. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2025-43915. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Buoyant Edge up to 2.16.4/2.17.1/25.2.0. Affected by this issue is some unknown functionality of the component Linkerd Proxy Metrics Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

In Buoyant Edge releases before edge-25.2.1 and Enterprise for Linkerd releases 2.16.* before 2.16.5, 2.17.* before 2.17.2, and 2.18.* before 2.18.0, resource exhaustion can occur for Linkerd proxy metrics.

The advisory is available at buoyant.io. This vulnerability is handled as CVE-2025-43915 since 04/19/2025. The technical details are unknown and an exploit is not available.

Upgrading to version 2.16.5, 2.17.2, 2.18.0 or 25.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-13396). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Buoyant

Name

Edge

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Edge 2.16.5/2.17.2/2.18.0/25.2.1

Timelineinfo

04/19/2025 🔍
05/05/2025 +16 days 🔍
05/05/2025 +0 days 🔍
05/19/2025 +14 days 🔍

Sourcesinfo

Advisory: buoyant.io
Status: Confirmed

CVE: CVE-2025-43915 (🔍)
GCVE (CVE): GCVE-0-2025-43915
GCVE (VulDB): GCVE-100-307442
EUVD: 🔍

Entryinfo

Created: 05/05/2025 18:47
Updated: 05/19/2025 21:12
Changes: 05/05/2025 18:47 (55), 05/15/2025 21:25 (1), 05/19/2025 21:12 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.