IP TOOLS 2.50 Local Buffer Overflow Denial of Service

published 2026-04-05 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2018-21766

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

IP TOOLS 2.50 contains a local buffer overflow vulnerability in the SNMP Scanner component that allows local attackers to crash the application by supplying oversized input. Attackers can paste malicious data into the 'From Addr' and 'To Addr' fields and trigger the crash by clicking the Start button, causing denial of service and SEH overwrite.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-04-06)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

exploit-db.com https://www.exploit-db.com/exploits/46286 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Ks-Soft IP TOOLS

Classification

Weakness

CWE-787 Out-of-bounds Write

References

exploit-db.com /exploits/46286
exploit, vdb-entry
ks-soft.net /ip-tools.eng/index.htm
product
vulncheck.com /advisories/ip-tools-local-buffer-overflow-denial-of-service
third-party-advisory

Sources

CVE List CVE-2018-25256
NVD CVE-2018-25256

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary