Review reviewHigh

CVE-2026-8652

NEC Platforms, Ltd. Aterm MR51FN, Aterm CM51FD

An OS Command Injection vulnerability exists in Aterm. If a malicious third person gains administrator access to the product’s web console, they may be able to execute arbitrary OS commands via adjacent network.

CVSS
8.5
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.05.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 8.5

Vulnerability overview

An OS Command Injection vulnerability exists in Aterm. If a malicious third person gains administrator access to the product’s web console, they may be able to execute arbitrary OS commands via adjacent network.

Affected product and versions

Product
NEC Platforms, Ltd. Aterm MR51FN, Aterm CM51FD
Affected versions
>= Before Ver. 3.4.0, >= Before Ver. 1.2.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that NEC Platforms, Ltd. Aterm MR51FN, Aterm CM51FD and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE
CWE-78