BGP Monitoring on Checkmk certificate validation

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 (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in BGP Monitoring on Checkmk and classified as critical. This vulnerability affects unknown code. This manipulation causes certificate validation. The identification of this vulnerability is CVE-2025-58123. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in BGP Monitoring on Checkmk (the affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect integrity. The summary by CVE is:

Improper Certificate Validation in Checkmk Exchange plugin BGP Monitoring allows attackers in MitM position to intercept traffic.

The weakness was shared by Felix Eberstaller. The advisory is shared at exchange.checkmk.com. This vulnerability is known as CVE-2025-58123 since 08/25/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/25/2025 CVE reserved
08/28/2025 +3 days Advisory disclosed
08/28/2025 +0 days VulDB entry created
08/28/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: exchange.checkmk.com
Researcher: Felix Eberstaller
Status: Not defined

CVE: CVE-2025-58123 (🔒)
GCVE (CVE): GCVE-0-2025-58123
GCVE (VulDB): GCVE-100-321709

Entryinfo

Created: 08/28/2025 15:44
Changes: 08/28/2025 15:44 (64)
Complete: 🔍
Cache ID: 216::103

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