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Vulnerabilities CVE-2026-58317

CVE-2026-58317

Medium
Open
TLP:CLEAR

AI Analysis

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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.

Details

CVSS Score
6.3
EPSS Score
0.18%

7.9th percentile

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Confidence
90%
Published
Jul 17, 2026
Last Modified
Jul 17, 2026
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