CVE-2026-58317
MEDIUM
NVD
CVSS Score
6.3
Severity
MEDIUM
Published
Jul 17, 2026
Vendor
unknown
Description
Unsigned to Signed Conversion Error (CWE-196) vulnerability exists in TTSSH2 plugin of Tera Term provided by TeraTerm Project. When Tera Term attempts to establish an SSH connection to a server set up by an attacker, out-of-bounds read/write may occur. As a result, the contents of adjacent memory regions may be transmitted to the server, and Tera Term may behave unexpected or terminate abnormally.