Out-of-bounds read in CivetWeb - CVE-2018-12684
Published: November 24, 2025
Vulnerability identifier: #VU118726
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-12684
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the send_ssi_file() function in civetweb.c. A remote attacker can pass a specially crafted SSI file to the application, trigger an out-of-bounds read error and read contents of memory on the system.
Affected software
CivetWeb
How to mitigate CVE-2018-12684
Install updates from vendor's website.
CivetWeb - update to 1.11