High (7.3) in openbsd openssh. EPSS 4.7% chance of exploitation in the next 30 days.
The hash_buffer function in schnorr.c in OpenSSH through 6.4, when Makefile.inc is modified to enable the J-PAKE protocol, does not initialize certain data structures, which might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via vectors that trigger an error condition.
Severity
CVSS 3.1
7.3 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)