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CVE-2026-55199

🗓️ 17 Jun 2026 18:44:18Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 14 Views

Pre-auth DoS in libssh2 via crafted extension count during key exchange fixed in commit 1762685.

Related
Packages
OSOS VersionArchitecturePackagePackage VersionFilename
Debian13alllibssh21.11.1-1+deb13u1libssh2_1.11.1-1+deb13u1_all.deb
Debian14alllibssh21.11.1-4libssh2_1.11.1-4_all.deb
Debian999alllibssh21.11.1-4libssh2_1.11.1-4_all.deb

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17 Jun 2026 18:44Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.9 - 7.5
CVSS 48.2
EPSS0.00918
SSVC
14