CVE-2026-60060 Memory corruption in TTSSH2

Medium 5.1 Published Updated

An attacker can trigger out-of-bounds memory access in TTSSH2, potentially leaking memory contents or causing application crashes during SSH connections.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-60060?

CVE-2026-60060 is a medium-severity memory corruption vulnerability in TeraTerm Project TTSSH2, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-130

Which versions are affected by CVE-2026-60060?

How do I fix CVE-2026-60060?

No fix has been published for CVE-2026-60060 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-60060 being exploited?

There is no known exploitation of CVE-2026-60060 in the wild and no public exploit code.

Sources

Also known as GHSA-qcvw-2hm7-q2rp.

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