Vulnerability Details CVE-2026-19643
An out-of-bounds read issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862, on some platforms, might allow a remote authenticated user to crash an application that processes crafted Base64-encoded input.
To remediate this issue, users should upgrade to version 1.11.862.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 26.1%
CVSS Severity
CVSS v3 Score 5.3