CVE-2025-34451

Published: Dic 18, 2025 Last Modified: Dic 31, 2025
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,9
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

rofl0r/proxychains-ng versions up to and including 4.17 and prior to commit cc005b7 contain a stack-based buffer overflow vulnerability in the function proxy_from_string() located in src/libproxychains.c. When parsing crafted proxy configuration entries containing overly long username or password fields, the application may write beyond the bounds of fixed-size stack buffers, leading to memory corruption or crashes. This vulnerability may allow denial of service and, under certain conditions, could be leveraged for further exploitation depending on the execution environment and applied mitigations.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0002
Percentile
0,0th
Updated

EPSS Score Trend (Last 88 Days)

121

Stack-based Buffer Overflow

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Modify Memory Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Execute Unauthorized Code Or Commands Bypass Protection Mechanism Other
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Application

Proxychains-Ng by Proxychains-Ng Project

Product Information
Vendor Proxychains-Ng Project
Product Proxychains-Ng
Version Range Affected
To 4.17 (inclusive)
cpe:2.3:a:proxychains-ng_project:proxychains-ng:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/marlinkcyber/advisories/blob/main/adviso…
https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-008…
https://github.com/httpsgithu/proxychains-ng/commit/cc005b7
https://github.com/httpsgithu/proxychains-ng/commit/cc005b7
https://github.com/marlinkcyber/advisories/blob/main/adviso…
https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-008…
https://github.com/rofl0r/proxychains-ng/issues/606
https://github.com/rofl0r/proxychains-ng/issues/606
https://www.vulncheck.com/advisories/rofl0r-proxychains-ng-…
https://www.vulncheck.com/advisories/rofl0r-proxychains-ng-stack-based-buffer-o…