CVE-2026-111137: libsmi 0 through 0.5.0

Affected technology

libsmi · 0 through 0.5.0
amartin755

Description’s affected range: through 0.5.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · Passive user interaction

What an attacker can do

Attackers can supply a crafted MIB with an OCTET STRING DEFVAL of 512 or more octets and a leading 0x00 byte to corrupt adjacent library globals and crash smidump or other consumers. Vendor/CNA’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality impact as none; integrity impact as low; availability impact as high.