#VU124480 Integer overflow in NGINX Open Source - CVE-2026-27784
Published: March 25, 2026
Vulnerability identifier: #VU124480
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-27784
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
NGINX Open Source
NGINX Open Source
Software vendor:
F5 Networks
F5 Networks
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the ngx_http_mp4_module module. A remote attacker can supply specially crafted MP4 data to the server, trigger an integer overflow and execute arbitrary code on the target system.
Note, the vulnerability affects only 32-bit NGINX Open Source deployments.
Remediation
Install updates from vendor's website.