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TI-2018-15518 Aliases CVE-2018-25293GHSA-h6jp-6wrq-7m6h

Prime95 29.4b7 Denial of Service via Proxy Password Field

Priority MEDIUM 64CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00137 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MersennePrime9529.4b7—No fix listedCNA
  • Prime95 VendorMersenne Affected 29.4b7 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-25293
  2. 2026-10-03 Alias added: GHSA-h6jp-6wrq-7m6h

References

Exploit 1

Other 2

  • TI-2018-15524 Prime95 29.4b8 Local Buffer Overflow via SEH CVSS 4.0HIGH 8.6
  • TI-2022-12368 Prime95 30.7 build 9 suffers from a Buffer Overflow vulnerability that could lead to Remote Code Execution. CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences