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CVE-2026-56123

🗓️ 25 Jun 2026 17:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 3 Views

Vulnerability CVE-2026-56123 affects socat versions 1.8.0.0 to 1.8.1.1, causing a heap overflow via a signed domain name length in the SOCKS proxy.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-56123
25 Jun 202615:43
attackerkb
AlpineLinux
CVE-2026-56123
25 Jun 202615:43
alpinelinux
Circl
CVE-2026-56123
29 Jun 202600:37
circl
CVE
CVE-2026-56123
25 Jun 202615:43
cve
Cvelist
CVE-2026-56123 socat 1.8.0.0 - 1.8.1.1 Heap Buffer Overflow via SOCKS5 Reply Parser
25 Jun 202615:43
cvelist
Debian CVE
CVE-2026-56123
25 Jun 202615:43
debiancve
EUVD
EUVD-2026-39455
25 Jun 202615:43
euvd
NVD
CVE-2026-56123
25 Jun 202617:17
nvd
OPENSUSE Linux
socat-1.8.1.3-1.1 on GA media (moderate)
30 Jun 202600:00
opensuse
OSV
ALPINE-CVE-2026-56123
25 Jun 202617:17
osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu24.04allsocat1.8.0.0-4ubuntu0.1socat_1.8.0.0-4ubuntu0.1_all.deb
Ubuntu26.04allsocat1.8.1.1-1ubuntu0.1socat_1.8.1.1-1ubuntu0.1_all.deb

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06 Jul 2026 14:53Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.18.1 - 9.8
CVSS 49.2
EPSS0.00308
SSVC
3