Read the docs
TI-2018-15652 Aliases CVE-2018-25427GHSA-phhg-j5g3-4q79

Arm Whois 3.11 Buffer Overflow via SEH Overwrite

Priority MEDIUM 50CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Arm Whois 3.11 contains a stack-based buffer overflow vulnerability that allows remote attackers to execute arbitrary code by supplying oversized input to the IP address or domain field. Attackers can craft malicious input exceeding 658 bytes with shellcode to overwrite the structured exception handler and gain command execution when the application processes the input.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00923 60th 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
None
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ArmcodeArm Whois3.11—No fix listedCNA
  • Arm Whois VendorArmcode Affected 3.11 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-2018-25427
  2. 2026-10-03 Alias added: GHSA-phhg-j5g3-4q79

References

Exploit 1

Other 2

  • TI-2018-15648 Arm Whois 3.11 Denial of Service via Buffer Overflow CVSS 4.0MEDIUM 6.9
  • TI-2018-13780 Adult Filter 1.0 has a Buffer Overflow via a crafted Black Domain List file. CVSS 3.0HIGH 7.8
  • TI-2018-15657 Arm Whois 3.11 Buffer Overflow via ASLR Bypass CVSS 4.0HIGH 8.6
  • TI-2024-01109 Armcode AlienIP Locate Host denial of service CVSS 3.1MEDIUM 5.5

Sources

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