Description
Arm Keil MDK-Middleware 8.0.0-8.3.0 may allow pre-authentication out-of-bounds read in SNMP processing
Published: 2026-10-26
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: Information Disclosure
Action: Apply Patch
AI Analysis

Impact

An out-of-bounds read can allow an attacker to read memory contents beyond the intended buffer during SNMP processing. This flaw is a pre-authentication vulnerability, meaning an attacker does not need valid credentials to trigger it. The resulting information disclosure may reveal sensitive configuration or application data, potentially leading to further exploitation if the attacker can combine the disclosed information with additional weaknesses.

Affected Systems

Keil MDK-Middleware versions 8.0.0 through 8.3.0 are affected. The vulnerability applies to any deployment of this middleware that processes SNMP requests.

Risk and Exploitability

The CVSS score is 5.3, indicating moderate severity, and the EPSS score is unavailable, so the likelihood of exploitation cannot be precisely quantified. The vulnerability is not listed in the CISA KEV catalog, which suggests lower exposure, yet it remains a serious flaw due to potential information disclosure. The attack vector is inferred to be local or remote if SNMP is exposed to untrusted peers; any device running the affected middleware and exposing SNMP may be susceptible.

Generated by OpenCVE AI on October 26, 2026 at 18:30 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Keil MDK-Middleware to the latest 8.x release that contains the fixed SNMP processing logic.
  • Limit SNMP access to trusted networks or hosts to reduce exposure to this vulnerability.
  • Monitor SNMP traffic for anomalous patterns that may indicate exploitation of the out-of-bounds read.

Generated by OpenCVE AI on October 26, 2026 at 18:30 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 26 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Keil
Keil mdk-middleware
Vendors & Products Keil
Keil mdk-middleware

Mon, 26 Oct 2026 18:15:00 +0000

Type Values Removed Values Added
Title Pre-authentication Out-of-bounds Read in SNMP Processing for Keil MDK-Middleware

Mon, 26 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Mon, 26 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description Arm Keil MDK-Middleware 8.0.0-8.3.0 may allow pre-authentication out-of-bounds read in SNMP processing
Weaknesses CWE-195
References

Subscriptions

Keil Mdk-middleware
cve-icon MITRE

Status: PUBLISHED

Assigner: Arm

Published:

Updated: 2026-10-26T16:17:28.313Z

Reserved: 2026-10-23T08:33:45.276Z

Link: CVE-2026-115678

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-26T16:17:17.327

Modified: 2026-10-26T17:17:16.990

Link: CVE-2026-115678

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T18:49:39Z

Weaknesses
  • CWE-195

    Signed to Unsigned Conversion Error