CVE-2026-48851

PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not cleared between proxy authentication and the main session.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.tartarus.org/pipermail/putty-announce/2026/000042.html	Release Notes
https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/telnet-trust-sigil.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-25 21:16

Updated : 2026-07-24 10:10

NVD link : CVE-2026-48851

Mitre link : CVE-2026-48851

CVE.ORG link : CVE-2026-48851

JSON object : View

Products Affected

putty

putty

CWE

CWE-451

User Interface (UI) Misrepresentation of Critical Information

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