CVE-2026-27784

The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to over-read or over-write NGINX worker memory resulting in its termination, using a specially crafted MP4 file. The issue only affects 32-bit NGINX Open Source if it is built with the ngx_http_mp4_module module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted MP4 file with the ngx_http_mp4_module module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://my.f5.com/manage/s/article/K000160364	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:nginx_open_source::::::::
	cpe:2.3:a:f5:nginx_open_source::::::::

History

30 Mar 2026, 13:59

Type	Values Removed	Values Added
CPE		cpe:2.3:a:f5:nginx_open_source::::::::
References	~~() https://my.f5.com/manage/s/article/K000160364 -~~	() https://my.f5.com/manage/s/article/K000160364 - Mitigation, Vendor Advisory
First Time		F5 F5 nginx Open Source

Information

Published : 2026-03-24 15:16

Updated : 2026-03-30 13:59

NVD link : CVE-2026-27784

Mitre link : CVE-2026-27784

CVE.ORG link : CVE-2026-27784

JSON object : View

Products Affected

f5

nginx_open_source

CWE

CWE-190

Integer Overflow or Wraparound

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