CVE-2026-4309
6.5 · MEDIUMMissing Authorization vulnerability in NEC Platforms, Ltd.
Overview
CVE-2026-4309 is a medium-severity vulnerability affecting nec aterm_wg2600hs_firmware. It was published on March 27, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
Missing Authorization vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to get a specific device information and change the settings via network.
Remediation
Check the references section for vendor advisories and patches from nec. Update aterm_wg2600hs_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nec | aterm_wg2600hs_firmware | >= 0, < 1.7.2 | Affected |
| nec | aterm_wf1200cr_firmware | >= 0, < 1.6.0 | Affected |
| nec | aterm_wg1200cr_firmware | >= 0, < 1.5.0 | Affected |
| nec | aterm_wg2600hp4_firmware | >= 0, < 1.4.2 | Affected |
| nec | aterm_wg2600hm4_firmware | >= 0, < 1.4.2 | Affected |
| nec | aterm_wg2600hs2_firmware | >= 0, < 1.3.2 | Affected |
| nec | aterm_wx3000hp_firmware | >= 0, < 2.5.0 | Affected |
| nec | aterm_wx3600hp_firmware | 0 | Affected |
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Frequently asked questions
What is CVE-2026-4309?
CVE-2026-4309 is a medium-severity vulnerability affecting nec aterm_wg2600hs_firmware. It was published on March 27, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2026-4309?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-4309?
Check the references section for vendor advisories and patches from nec. Update aterm_wg2600hs_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-4309?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-4309 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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