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CVE-2015-8611

Critical Vulnerability: CVE-2015-8611 — f5 — big-ip_domain_name_system, big-ip_application_acceleration_manager

BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, and PEM 12.0.0 before HF1 on the 2000, 4000, 5000, 7000, and 10000 platforms do not properly sync passwords with the Always-On Management (AOM) subsystem, which might allow remote attackers to obtain login access to AOM via an (1) expired or (2) default password.

Thursday, May 14, 2026f5Vulnios Threat Intelligence
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Vulnerability Snapshot

CVE-2015-8611 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.

Affected technology: big-ip_domain_name_system, big-ip_application_acceleration_manager, big-ip_link_controller, big-ip_policy_enforcement_manager, big-ip_advanced_firewall_manager, plus 4 other product variants.

Executive Summary

BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, and PEM 12.0.0 before HF1 on the 2000, 4000, 5000, 7000, and 10000 platforms do not properly sync passwords with the Always-On Management (AOM) subsystem, which might allow remote attackers to obtain login access to AOM via an (1) expired or (2) default password.

Why It Matters

CVE-2015-8611 is rated CRITICAL severity, requiring immediate attention from security teams.

CVSS Base Score: 9.8/10

Affected Technologies

Vendors: f5

Products: big-ip_domain_name_system, big-ip_application_acceleration_manager, big-ip_link_controller, big-ip_policy_enforcement_manager, big-ip_advanced_firewall_manager, big-ip_local_traffic_manager, big-ip_access_policy_manager, big-ip_application_security_manager, big-ip_analytics

🛡️What Defenders Should Check

  • Check if you are affected — Review your asset inventory for products listed in CVE-2015-8611.
  • Apply available patches — Visit vendor advisories for the latest security updates.
  • Monitor for exploitation — Check your SIEM/IDS logs for related indicators.

    • Use Vulnios to continuously monitor your exposure to CVE-2015-8611 and similar vulnerabilities.

    References & Sources

  • http://www.securitytracker.com/id/1034629
  • https://support.f5.com/kb/en-us/solutions/public/k/05/sol05272632.html
  • http://www.securitytracker.com/id/1034629
  • https://support.f5.com/kb/en-us/solutions/public/k/05/sol05272632.html

    • How Vulnios Detects This

    Vulnios scans for this vulnerability using Trivy and Grype for SBOM-based CVE matching and Vulnios CVE feed continuous monitoring against your asset inventory. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.

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    Affected Products

    big-ip_domain_name_systembig-ip_application_acceleration_managerbig-ip_link_controllerbig-ip_policy_enforcement_managerbig-ip_advanced_firewall_managerbig-ip_local_traffic_managerbig-ip_access_policy_managerbig-ip_application_security_managerbig-ip_analytics

    Sources

    Related Threat Alerts

    Frequently Asked Questions

    What is CVE-2015-8611?

    CVE-2015-8611 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, and PEM 12.0.0 before HF1 on the 2000, 4000, 5000, 7000, and 10000 platforms do not properly sync passwords with the Always-On Manageme

    Am I affected?

    Check whether your environment runs big-ip_domain_name_system, big-ip_application_acceleration_manager, big-ip_link_controller, big-ip_policy_enforcement_manager, big-ip_advanced_firewall_manager. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.

    How urgent is the response?

    Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.

    How do I remediate?

    Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.

    Where can I track exploitation activity?

    Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2015-8611. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.

    How does Vulnios help with this?

    Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.

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