All vulnerabilities

Servers and applications

CVE-2019-16905

OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions,…

Severity
High 7.8
Published
9 Oct 2019
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.1
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • From 7.7 up to 7.9
  • From 8.0 before 8.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-16905
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-16905