CVE-2025-34127

Public Exploit
Achat v0.150 SEH Buffer Overflow via UDP

Description

A stack-based buffer overflow exists in Achat v0.150 in its default configuration. By sending a specially crafted message to the UDP port 9256, an attacker can overwrite the structured exception handler (SEH) due to insufficient bounds checking on user-supplied input leading to remote code execution.

Category

9.3
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.27%
Third-Party Advisory vulncheck.com
Affected: Achat Software Achat Chat Server
Published at:
Updated at:

References

Link Tags
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/achat_bof.rb exploit
https://www.vulncheck.com/advisories/achat-seh-buffer-overflow third party advisory
https://www.exploit-db.com/exploits/36056 exploit

Frequently Asked Questions

What is the severity of CVE-2025-34127?
CVE-2025-34127 has been scored as a critical severity vulnerability.
How to fix CVE-2025-34127?
To fix CVE-2025-34127, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-34127 being actively exploited in the wild?
It is possible that CVE-2025-34127 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-34127?
CVE-2025-34127 affects Achat Software Achat Chat Server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.