CVE-2018-25220

CRITICAL 9.8

Bochs 2.6-5 Buffer Overflow Remote Code Execution

CVSS Score

9.8

EPSS Score

0.1%

EPSS Percentile

24th

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.

CWE	CWE-787
Vendor	bochs
Product	bochs
Published	Mar 28, 2026
Last Updated	Mar 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

bochs / BOCHS

2.6-5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Juan Sacco <[email protected]> - http://exploitpack.com