CVE-2018-25220CWE-787

Bochs 2.6-5 Buffer Overflow Remote Code Execution

Critical · published March 28, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
49.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00637 · 49.9th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-03-28T11:58Z
EPSS history
Timeline
  • 28 MAR 11:58Z
    Bochs 2.6-5 Buffer Overflow Remote Code Execution
    cvelistv5