OS Command Injection in SkyBridge MB-A100/MB-A110 (CVE-2026-50043)
Summary
OS command injection in SkyBridge MB-A100/MB-A110 (CVE-2026-50043). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in SkyBridge MB-A100/MB-A110. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product with an administrative privilege.
Source: JVN (Japan Vulnerability Notes) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-50043 has been found in SkyBridge MB-A100/MB-A110.
Successful exploitation can lead to full system takeover. CVSS score: 7.2/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "SkyBridge MB-A100/MB-A110 CVE-2026-50043" on the vendor's site.
CVE-2026-50043 (SkyBridge MB-A100/MB-A110) — CWE-78 / CVSS v3 7.2
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
OS command injection (CWE-78) exists in SkyBridge MB-A100/MB-A110.
Check the vendor advisory for the affected versions of SkyBridge MB-A100/MB-A110.
Severity: High (CVSS 7.2/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで SkyBridge MB-A100/MB-A110 を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- JVN JVNDB-2026-000091
- web nvd.nist.gov
- web jvn.jp
- web seiko-sol.co.jp
- web github.com
- web vultures@jpcert.or.jp
- web vultures@jpcert.or.jp