NXLog Agent up to 6.10 Environment Variable OPENSSL_CONF inclusion of functionality from untrusted control sphere

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.
6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in NXLog Agent up to 6.10. This impacts an unknown function of the component Environment Variable Handler. This manipulation of the argument OPENSSL_CONF causes inclusion of functionality from untrusted control sphere. This vulnerability appears as CVE-2025-67900. The attack requires local access. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in NXLog Agent up to 6.10 and classified as problematic. Affected by this vulnerability is some unknown processing of the component Environment Variable Handler. The manipulation of the argument OPENSSL_CONF with an unknown input leads to a inclusion of functionality from untrusted control sphere vulnerability. The CWE definition for the vulnerability is CWE-829. The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NXLog Agent before 6.11 can load a file specified by the OPENSSL_CONF environment variable.

The advisory is shared at docs.nxlog.co. This vulnerability is known as CVE-2025-67900 since 12/14/2025. The exploitation appears to be difficult. An attack has to be approached locally. Technical details are known, but no exploit is available.

Upgrading to version 6.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-203315). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.1
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Inclusion of functionality from untrusted control sphere
CWE: CWE-829
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Agent 6.11

Timelineinfo

12/14/2025 CVE reserved
12/15/2025 +1 days Advisory disclosed
12/15/2025 +0 days VulDB entry created
12/15/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.nxlog.co
Status: Confirmed

CVE: CVE-2025-67900 (🔒)
GCVE (CVE): GCVE-0-2025-67900
GCVE (VulDB): GCVE-100-336433
EUVD: 🔒

Entryinfo

Created: 12/15/2025 09:17
Updated: 12/15/2025 13:13
Changes: 12/15/2025 09:17 (64), 12/15/2025 13:13 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!