CVE-2016-10708
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS...
- Published
- Jan 21, 2018
- Updated
- Apr 29, 2026
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HModerate · next 30 days
- Percentile
- 96.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.
Sources
1- CVE-2016-10708Exploit
Proof-of-concept script for CVE-2016-10708 that scans OpenSSH servers for vulnerability and performs denial-of-service via crafted SSH_MSG_NEWKEYS packet flooding.
Responsible use
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