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CVE-2026-66034

🗓️ 24 Jul 2026 17:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 6 Views

CVE-2026-66034: libssh2 missing bounds check in publickey subsystem allows heap out-of-bounds read and free of an uninitialized pointer.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-66034
24 Jul 202616:42
attackerkb
alpinelinux
AlpineLinux
CVE-2026-66034
24 Jul 202616:42
alpinelinux
cbl_mariner
CBLMariner
CVE-2026-66034 affecting package libssh2 for versions less than 1.11.1-5
29 Jul 202620:30
cbl_mariner
circl
Circl
CVE-2026-66034
24 Jul 202618:00
circl
cve
CVE
CVE-2026-66034
24 Jul 202616:42
cve
cvelist
Cvelist
CVE-2026-66034 libssh2 Heap Out-of-Bounds Read via publickey subsystem
24 Jul 202616:42
cvelist
debiancve
Debian CVE
CVE-2026-66034
24 Jul 202616:42
debiancve
euvd
EUVD
EUVD-2026-48721
24 Jul 202616:42
euvd
mscve
Microsoft CVE
libssh2 Heap Out-of-Bounds Read via publickey subsystem
26 Jul 202608:03
mscve
nvd
NVD
CVE-2026-66034
24 Jul 202617:17
nvd
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu14.04alllibssh20libssh2_0_all.deb
Ubuntu18.04alllibssh20libssh2_0_all.deb
Ubuntu20.04alllibssh20libssh2_0_all.deb
Ubuntu22.04alllibssh20libssh2_0_all.deb
Ubuntu24.04alllibssh20libssh2_0_all.deb
Ubuntu26.04alllibssh20libssh2_0_all.deb

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07 Aug 2026 07:26Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
CVSS 47.7
EPSS0.00252
SSVC
6