VulnSocial

CVE-2026-76657Patch(arubanetworks / fabric_composer)

LOWCVSS 10.0 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch arubanetworks fabric_composer systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

arubanetworks CVEsBack to dashboard
2.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • fabric_composer

Threat summary

  • Public PoC is present in monitored signal
  • Patch or workaround signal is available
  • 7 mentions across 5 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 5 signals
  • Technical details provided in 5 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • Peaked 3d ago at 2 mentions (2026-09-02); latest day: 1
  • 7 total mentions across 5 days

Affected systems

Vendors
arubanetworks
Products
fabric_composer

Deep dive

Activity timeline7 mentions / 5d
01122Mentions · 2026-09-01: 1Mentions · 2026-09-02: 2Mentions · 2026-09-03: 2Mentions · 2026-09-04: 1Mentions · 2026-09-09: 1PoC Mentioned / Linked · 2026-09-03: 1Patch / Workaround · 2026-09-01: 1Patch / Workaround · 2026-09-02: 2Patch / Workaround · 2026-09-04: 1Patch / Workaround · 2026-09-09: 1Technical Details · 2026-09-01: 1Technical Details · 2026-09-02: 1Technical Details · 2026-09-03: 1Technical Details · 2026-09-04: 1Technical Details · 2026-09-09: 109-0109-0209-0309-0409-09
Signal classification3 categories
Patch
457.1%
Disclosure
228.6%
General
114.3%
Referenced assets6 URLs
Classification over time
DateTotalLabels
2026-09-011
Patch1
2026-09-022
Disclosure1Patch1
2026-09-032
Disclosure1General1
2026-09-041
Patch1
2026-09-091
Patch1
Full discourse7 posts
  • NCIIPC India@NCIIPC
    Patch

    Multiple critical #Vulnerabilities have been discovered in #HPE Aruba Networking Fabric Composer. Upgrade immediately to remain safe. #CVE-2026-76657 #CVE-2026-76658 #CVE-2026-19766 #CVE-2026-73700 #CVE-2026-73701 https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US

    Post summary

    The tweet announces several critical CVEs in HPE Aruba Fabric Composer and urges users to apply HPE patches immediately via the linked vendor support article.

    10020708
    8.5K followersView on X
  • ExploitGrid@exploitgrid
    General

    🛡️ #ExploitGrid Daily #Threat Digest Top Vulnerabilities (CVEs) of the day CVE-2026-75604 - EXPLOIT CVE-2026-63137 - EXPLOIT CVE-2026-76657 CVE-2026-76658 CVE-2026-84147 ..🧵👇

    Post summary

    The post simply enumerates CVEs, some marked as EXPLOIT, without providing exploit code, active usage evidence, or technical or patch details.

    1000157
    40 followersView on X
  • Daily CyberSecurity@Daily_CyberSec
    Patch

    Critical HPE Fabric Composer vulnerabilities, including CVE-2026-76657, allow remote code execution. Update to version 7.4.0 now to secure your network. #HPE #FabricComposer #Vulnerability #Cybersecurity #CVE202676657 https://securityonline.info/hpe-fabric-composer-vulnerabilities/ https://t.co/T8kkzvTmtk

    Post summary

    The tweet highlights remote code execution vulnerabilities in HPE Fabric Composer (CVE-2026‑76657) and urges users to update to version 7.4.0 to mitigate the risk.

    00002435
    12.9K followersView on X
  • ExploitGrid@exploitgrid
    Disclosure

    [CVE] CVE-2026-76657 [HIGH PRIORITY] #Authentication Bypass in HPE Networking Fabric Composer API allows Administra... 🔗 https://exploitgrid.net/cve/CVE-2026-76657

    Post summary

    A new high‑priority authentication bypass vulnerability (CVE‑2026‑76657) in the HPE Networking Fabric Composer API is disclosed, with a public PoC reference available on ExploitGrid.

    1000039
    40 followersView on X
  • iototsecnews@iototsecnews
    Patch

    HPE Fabric Composer の脆弱性 CVE-2026-76658 などが FIX：基盤となるホストの完全侵害の恐れ https://iototsecnews.jp/2026/09/01/critical-hpe-fabric-composer-flaw-lets-unauthenticated-attackers-execute-commands-as-privileged-user/ HPE Networking Fabric Composer の SSH デーモンや API における認証制御の欠陥により、未認証の第三者によってリモートから管理者権限が奪取され、システムが乗っ取られる恐れがあります。基盤ホストの完全な侵害／特権コマンドの任意実行／データ漏洩などの深刻な影響が生じるため、バージョン 7.3.4 以降または 7.4.0 以降へのアップデートや管理ポートの分離といった迅速なアクセス制限の適用が強く求められます。対象となる脆弱性には CVE-2026-76658／CVE-2026-76657／CVE-2026-19766／CVE-2026-73700／CVE-2026-73701 などが含まれます。 #CVE202619766 #CVE202673701 #CVE202676657 #CVE202676658 #FabricComposer #HPE #Vulnerability

    Post summary

    The post discloses authentication flaws in HPE Fabric Composer that could enable unauthenticated remote attackers to take full control, and it strongly recommends applying the 7.3.4/7.4.0 patches and isolating management ports to mitigate the risk.

    00000128
    514 followersView on X
  • SecAlerts@SecAlertsCo
    Patch

    🪢 HPE Networking Fabric Composer API: CVE-2026-76657 is a CVSS 10 auth bypass giving unauthenticated attackers full administrative access. No credentials needed. Patch immediately. #cybersecurity #ciso #cto #vulnerabilities #mssp https://secalerts.co/vulnerability/CVE-2026-76657?utm_campaign=x https://t.co/l1YXnlXu3r

    Post summary

    CVE‑2026‑76657 is a critical authentication bypass allowing unauthenticated users full admin access; immediate patching is required.

    00000119
    888 followersView on X
  • The Daily Tech Feed@dailytechonx
    Disclosure

    Critical vulnerabilities in HPE Fabric Composer allow unauthenticated attackers to bypass authentication, execute arbitrary code, and gain full admin access. CVE-2026-76657 and CVE-2026-76658 score 10.0. Users must update versions and lock down APIs, SSH, and web interfaces ASAP for network security. #HPE #Security #Vulnerabilities #NetworkSecurity #FabricComposer #CVE10 https://thedailytechfeed.com/severe-hpe-fabric-composer-flaws-let-attackers-fully-compromise-systems/

    Post summary

    HPE Fabric Composer contains two critical CVEs (CVE-2026-76657/58) that enable unauthenticated remote code execution; users are advised to update firmware and tighten interface security immediately.

    0000059
    698 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apparubanetworksfabric_composer---

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