CVE-2026-111137

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Source
https://cve.org/CVERecord?id=CVE-2026-111137
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111137.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-111137
Downstream
Published
2026-10-15T18:57:30Z
Modified
2026-10-28T02:30:27Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
libsmi through 0.5.0 Out-of-Bounds Write via smiValueAsString OCTET STRING DEFVAL
Details

libsmi through 0.5.0 contains an out-of-bounds write vulnerability in smiValueAsString() in lib/smi.c that allows attackers to overflow a fixed 1024-byte static buffer through hex rendering of OCTET STRING values. 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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111137.json"
}
References

Affected packages

Git / github.com/amartin755/libsmi

Affected ranges

Type
GIT
Repo
https://github.com/amartin755/libsmi
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
c58307210fe995ec419db976eb234aebc71a9216
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "0.5.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "0.5.0"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.4.8
v0.5.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111137.json"