Prime95 version 29.8 build 6 contains a buffer overflow vulnerability in the user ID input field that allows remote attackers to execute arbitrary code. Attackers can craft a malicious payload and paste it into the PrimeNet user ID and proxy host fields to trigger a bind shell on port 3110.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00231.

Exploitation poc

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Mersenne Research, Inc Prime95 affected
Version Status Constraints
29.8 affected —

No data.

No data.

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Vendors Products
Mersenne Research, Inc Subscribe
Prime95 Subscribe

Project Subscriptions

Vendors Products
Mersenne Research, Inc Subscribe
Prime95 Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.exploit-db.com/exploits/47802 cve-icon cve-icon
https://www.mersenne.org cve-icon cve-icon
https://www.vulncheck.com/advisories/prime-version-build-buffer-overflow-seh cve-icon cve-icon
History

Fri, 13 Feb 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Mersenne Research, Inc
Mersenne Research, Inc prime95
Vendors & Products Mersenne Research, Inc
Mersenne Research, Inc prime95

Fri, 13 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 12 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
Description Prime95 version 29.8 build 6 contains a buffer overflow vulnerability in the user ID input field that allows remote attackers to execute arbitrary code. Attackers can craft a malicious payload and paste it into the PrimeNet user ID and proxy host fields to trigger a bind shell on port 3110.
Title Prime95 Version 29.8 build 6 - Buffer Overflow (SEH)
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-13T15:41:09.663Z

Reserved: 2026-02-12T14:38:05.891Z

Link: CVE-2019-25327

cve-icon Vulnrichment

Updated: 2026-02-13T15:41:01.236Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-12T23:16:04.617

Modified: 2026-02-13T14:23:48.007

Link: CVE-2019-25327

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-13T21:29:08Z

Weaknesses