DISSECTING AND EXPLOITING CVE-2025-62507: REMOTE CODE EXECUTION IN REDIS

Summary from the TLDR InfoSec newsletter

JFrog's Security Researchers have demonstrated successful remote code execution exploitation of CVE-2025-62507, a stack buffer overflow in Redis 8.2.x's XACKDEL command with a CVSS score of 8.8. Unauthenticated attackers can overwrite the return address using crafted stream IDs, a vulnerability made easier by the lack of stack canary protection in the official Docker image. Shodan detected approximately 2,924 servers running vulnerable versions that are immediately exploitable without authentication, while 183,907 additional instances with authentication could also be at risk. Organizations are advised to upgrade to Redis 8.3.2, enable authentication, and compile with the -fstack-protector option, as the research highlights that CVSS scores alone should not determine patching priorities, since high-severity vulnerabilities can still offer straightforward remote code execution paths.