PuTTY 0.72 before 0.84 has a double free in RSA KEX.
CVSS Score
3.7
EPSS Score
0.003
Published
2026-05-25
PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not cleared between proxy authentication and the main session.
CVSS Score
3.1
EPSS Score
0.002
Published
2026-05-25
PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
CVSS Score
3.7
EPSS Score
0.003
Published
2026-05-25