CVE-2026-60060: Improper handling of length parameter inconsistency in TeraTerm Project TTSSH2
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.
AI Analysis
Technical Summary
The vulnerability CVE-2026-60060 affects the TTSSH2 plugin of the Tera Term project. It arises from improper handling of length parameter inconsistencies (CWE-130) when establishing an SSH connection. An attacker controlling the SSH server can trigger out-of-bounds memory read/write operations, leading to disclosure of adjacent memory contents and instability or crash of the Tera Term client. The CVSS 3.0 base score is 6.3, indicating a medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to leakage of adjacent memory contents to an attacker-controlled SSH server, potentially exposing sensitive information. Additionally, Tera Term may behave unexpectedly or terminate abnormally, impacting availability and integrity of the client session.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
CVE-2026-60060: Improper handling of length parameter inconsistency in TeraTerm Project TTSSH2
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.
CVSS v3.0
Score 6.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-60060 affects the TTSSH2 plugin of the Tera Term project. It arises from improper handling of length parameter inconsistencies (CWE-130) when establishing an SSH connection. An attacker controlling the SSH server can trigger out-of-bounds memory read/write operations, leading to disclosure of adjacent memory contents and instability or crash of the Tera Term client. The CVSS 3.0 base score is 6.3, indicating a medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to leakage of adjacent memory contents to an attacker-controlled SSH server, potentially exposing sensitive information. Additionally, Tera Term may behave unexpectedly or terminate abnormally, impacting availability and integrity of the client session.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-07-10T02:15:09.033Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a59b40a68715ace4359f6a6
Added to database: 07/17/2026, 04:48:10 UTC
Last enriched: 07/17/2026, 05:02:41 UTC
Last updated: 08/28/2026, 22:52:12 UTC
Views: 86
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.