CVE-2025-34127

CRITICAL 9.3CVE-2025-34127 · Published 16/07/2025 · updated 17/06/2026

In short

CVE-2025-34127 is a CRITICAL (CVSS 9.3) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 1.9%, higher than 79.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/achat_bof.rb
exploit-db.com/exploits/36056
vulncheck.com/advisories/achat-seh-buffer-overflow

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