CVE-2018-25293

MEDIUM

Prime95 29.4b7 Denial of Service via Proxy Password Field

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25293. PoCs published by Gionathan Reale.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in Prime95 29.4b7 by overflowing the 'Optional proxy password' field with a large buffer of 'A' characters, causing the application to crash.

Description

Prime95 29.4b7 contains a buffer overflow vulnerability in the PrimeNet connection dialog that allows local attackers to crash the application by supplying an excessively long string in the optional proxy password field. Attackers can trigger a denial of service by entering a 6000-byte payload into the proxy password parameter, causing the application to crash when processing the connection settings.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Gionathan Reale · pythondoswindows_x86
https://www.exploit-db.com/exploits/45226

This exploit demonstrates a Denial of Service (DoS) vulnerability in Prime95 29.4b7 by overflowing the 'Optional proxy password' field with a large buffer of 'A' characters, causing the application to crash.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Prime95 29.4b7
No auth needed
Prerequisites: Prime95 29.4b7 installed on Windows 7 32-bit · Access to the PrimeNet connection settings
devstral-2 · analyzed Apr 26, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-45226
https://www.exploit-db.com/exploits/45226
Product product
Official Product Homepage
http://www.mersenne.org
Third Party Advisory third-party-advisory
VulnCheck Advisory: Prime95 29.4b7 Denial of Service via Proxy Password Field
https://www.vulncheck.com/advisories/prime95-29-4b7-denial-of-service-via-proxy-password-field

Scores

CVSS v3 6.2
EPSS 0.0014
EPSS Percentile 3.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
Mersenne/Prime95 29.4b7
Published Apr 26, 2026
Tracked Since Apr 26, 2026