CVE-2026-48852

LOW EPSS 19.2%
Published May 25, 20261mo ago · Modified Jun 17, 20261w ago
3.7 CVSS 3.1
Low
Find Similar
Published May 25, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
3.7
Exploitability
2.2
Impact
1.4
Vector string
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

Threat Intelligence

EPSS Exploit Probability
19.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-617

Affected Products 1

VendorProductVersionRange
puttyputty*≥0.71  –  <0.84

References 2

  • lists.tartarus.org https://lists.tartarus.org/pipermail/putty-announce/2026/000042.html
    Release Notes
  • chiark.greenend.org.uk https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/ecdsa-remotely-triggerable-assertion.html
    PatchVendor Advisory

Remediation

  • chiark.greenend.org.uk https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/ecdsa-remotely-triggerable-assertion.html
    PatchVendor Advisory