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LOW · 3.7

CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.

Vulnerability Description

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.

CVSS Score

3.7

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
PuttyPutty>= 0.71, < 0.84

Related Weaknesses (CWE)

CWE-617

References

FAQ

What is CVE-2026-48852?

CVE-2026-48852 is a vulnerability with a CVSS score of 3.7 (LOW). PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.

How severe is CVE-2026-48852?

CVE-2026-48852 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-48852?

Check the references section above for vendor advisories and patch information. Affected products include: Putty Putty.