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libyang: libyang: Denial of Service or arbitrary code execution via maliciously crafted LYB binary blob

🗓️ 08 Jun 2026 18:39:17Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 10 Views

Libyang integer overflow in lyb_read_string may trigger heap overflow enabling DoS or code execution.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64libyang1.0.184-2.el8_10libyang-1.0.184-2.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686libyang1.0.184-2.el8_10libyang-1.0.184-2.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64lelibyang1.0.184-2.el8_10libyang-1.0.184-2.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xlibyang1.0.184-2.el8_10libyang-1.0.184-2.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64libyang1.0.184-2.el8_10libyang-1.0.184-2.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64libyang-cpp-debuginfo1.0.184-2.el8_10libyang-cpp-debuginfo-1.0.184-2.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686libyang-cpp-debuginfo1.0.184-2.el8_10libyang-cpp-debuginfo-1.0.184-2.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64lelibyang-cpp-debuginfo1.0.184-2.el8_10libyang-cpp-debuginfo-1.0.184-2.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xlibyang-cpp-debuginfo1.0.184-2.el8_10libyang-cpp-debuginfo-1.0.184-2.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64libyang-cpp-debuginfo1.0.184-2.el8_10libyang-cpp-debuginfo-1.0.184-2.el8_10.x86_64.rpm
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30 Jun 2026 04:22Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.5
EPSS0.00428
SSVC
10