Out-of-bounds read in Redis - CVE-2025-46819
Published: October 7, 2025 / Updated: October 8, 2025
Vulnerability identifier: #VU116640
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2025-46819
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Redis Labs
Affected software:
Redis
Redis
Detailed vulnerability description
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing Lua scripts. A remote user can trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
How to mitigate CVE-2025-46819
Install updates from vendor's website.