Description
PuTTY 0.72 before 0.84 has a double free in RSA KEX.
Affected products
putty: putty
References2
- www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/rsakex-doub… PatchVendor Advisory
- lists.tartarus.org/pipermail/putty-announce/2026/000042.html Release Notes
Metrics
- CVSS 3.1
-
5.9
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 25 · as of 14 November 2026
- CWE
- CWE-415
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