CVE-2026-48852

CVE-2026-48852

CVSS 3.7 LOWEPSS 0.3%CWE-617

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

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

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References

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