CVE-2018-25220

Bochs 2.6-5 contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by supplying an oversized input string to the application. Attackers can craft a malicious payload with 1200 bytes of padding followed by a return-oriented programming chain to overwrite the instruction pointer and execute shell commands with application privileges.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - disclosure@vulncheck.com

Published

2026-03-28

Last modified

2026-03-30

Weaknesses

CWE-787

Affected products

• Bochs (Bochs Project)

References

• http://bochs.sourceforge.net/
• https://www.exploit-db.com/exploits/43979
• https://www.vulncheck.com/advisories/bochs-5-buffer-overflow-remote-code-execution