aterm wg2600hs2 firmware vulnerabilities and fixes

Recent CVEs affecting aterm wg2600hs2 firmware, with upgrade or downgrade steps. 2 tracked.

Also searched as: atermwg2600hs2firmware.

aterm wg2600hs2 firmware has 2 tracked vulnerabilities, 1 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-03-27. Highest priority: CVE-2026-4622 (score 54/100).

• CVE-2026-4622 CRITICAL 9.8 UPGRADE UPGRADE OS Command Injection vulnerability in NEC Platforms, Ltd
• CVE-2026-4309 MEDIUM 6.5 UPGRADE UPGRADE Missing Authorization vulnerability in NEC Platforms, Ltd

FAQ

How do I fix aterm wg2600hs2 firmware vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is aterm wg2600hs2 firmware being exploited right now?

None of the tracked aterm wg2600hs2 firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which aterm wg2600hs2 firmware CVE should I patch first?

CVE-2026-4622 currently ranks highest (54/100): OS Command Injection vulnerability in NEC Platforms, Ltd.

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