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LOW · 3.7

CVE-2026-48850

PuTTY 0.72 before 0.84 has a double free in RSA KEX.

Vulnerability Description

PuTTY 0.72 before 0.84 has a double free in RSA KEX.

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>= 0.72, < 0.84

Related Weaknesses (CWE)

CWE-415

References

FAQ

What is CVE-2026-48850?

CVE-2026-48850 is a vulnerability with a CVSS score of 3.7 (LOW). PuTTY 0.72 before 0.84 has a double free in RSA KEX.

How severe is CVE-2026-48850?

CVE-2026-48850 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-2026-48850?

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