NULL pointer dereference in hyperscan - CVE-2026-28730
Published: November 13, 2026
Vulnerability identifier: #VU166186
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28730
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A local attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
hyperscan
How to mitigate CVE-2026-28730
Install updates from vendor's website.
hyperscan - update to 5.4.2.1