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CVE-2026-60060

Quick assessment

Affected
TeraTerm Project TTSSH2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TeraTerm Project TTSSH2是TeraTerm Project组织的一款SSH通信软件。 TeraTerm Project TTSSH2 3.6.1之前版本存在输入验证错误漏洞，该漏洞源于不正确的长度参数不一致处理，当Tera Term尝试与攻击者设置的服务器建立SSH连接时，可能发生越界读取/写入，导致相邻内存区域的内容被传输到服务器，并且Tera Term可能出现意外行为或异常终止。

AI Predicted 6.5 Difficulty: Easy EPSS 0.32% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
TeraTerm Project TTSSH2 1.00 alpha1≤ 3.6.1 affected
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I. Basic Information for CVE-2026-60060

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Handling of Length Parameter Inconsistency (CWE-130) 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
TeraTerm Project TTSSH2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TeraTerm Project TTSSH2是TeraTerm Project组织的一款SSH通信软件。 TeraTerm Project TTSSH2 3.6.1之前版本存在输入验证错误漏洞，该漏洞源于不正确的长度参数不一致处理，当Tera Term尝试与攻击者设置的服务器建立SSH连接时，可能发生越界读取/写入，导致相邻内存区域的内容被传输到服务器，并且Tera Term可能出现意外行为或异常终止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TeraTerm Project TTSSH2 1.00 alpha1 ~ 3.6.1 -

II. Public POCs for CVE-2026-60060

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III. Intelligence Information for CVE-2026-60060

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Vendor Advisories for CVE-2026-60060 (1)

Security Blog Posts for CVE-2026-60060 (2)

IV. Related Vulnerabilities

Same product: TTSSH2
Same vendor: TeraTerm Project
Same weakness: CWE-130

V. Comments for CVE-2026-60060

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