CVE-2018-25253

MEDIUM

Termite 3.4 Denial of Service via Settings Buffer Overflow

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25253. PoCs published by Abdullah Alıç.

AI-analyzed exploit summary This Python script generates a large buffer of 'A' characters (2000 bytes) and writes it to a file named 'boom.txt'. The payload is designed to trigger a denial of service (DoS) in Termite 3.4 when pasted into the 'User interface language' field in the application's settings.

Description

Termite 3.4 contains a buffer overflow vulnerability in the User interface language settings field that allows local attackers to cause a denial of service by supplying an excessively long string. Attackers can paste a 2000-byte payload into the Settings User interface language field to crash the application.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Abdullah Alıç · pythondoswindows_x86
https://www.exploit-db.com/exploits/45453

This Python script generates a large buffer of 'A' characters (2000 bytes) and writes it to a file named 'boom.txt'. The payload is designed to trigger a denial of service (DoS) in Termite 3.4 when pasted into the 'User interface language' field in the application's settings.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Termite 3.4
No auth needed
Prerequisites: Termite 3.4 installed on the target system · Ability to paste the payload into the 'User interface language' field
devstral-2 · analyzed Apr 07, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-45453
https://www.exploit-db.com/exploits/45453
Product product
Official Product Homepage
https://www.compuphase.com
Product product
Product Reference
https://www.compuphase.com/software_termite.htm
Third Party Advisory third-party-advisory
VulnCheck Advisory: Termite 3.4 Denial of Service via Settings Buffer Overflow
https://www.vulncheck.com/advisories/termite-denial-of-service-via-settings-buffer-overflow

Scores

CVSS v3 6.2
EPSS 0.0018
EPSS Percentile 7.7%
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-787
Status published
Products (2)
compuphase/termite < 3.4
Compuphase/Termite 3.4
Published Apr 04, 2026
Tracked Since Apr 04, 2026