This Week in Threats: Oct 06–Oct 20, 2026

Weekly Threat Summary

14 vulnerabilities were added to the CISA Known Exploited Vulnerabilities (KEV) catalog this period. The highest CVSS score is 10.0.

This week includes 6 critical-severity vulnerabilities (CVSS 9.0+) that require immediate attention.

This Week's Vulnerabilities

CVE-2026-105134: Ahsay AhsayCBS Command Injection Vulnerability

• CVSS Score: 10.0 (CRITICAL)
• Date Added: 2026-10-14
• Description: Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2015-3306: ProFTPD Improper Access Control Vulnerability

• CVSS Score: 10.0 (CRITICAL)
• Date Added: 2026-10-08
• Description: ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-76519: Cisco Secure Email Gateway Relative Path Traversal Vulnerability

• CVSS Score: 9.8 (CRITICAL)
• Date Added: 2026-10-14
• Description: Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated,...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2021-3199: ONLYOFFICE Docs Server Path Traversal Vulnerability

• CVSS Score: 9.8 (CRITICAL)
• Date Added: 2026-10-08
• Description: ONLYOFFICE Docs contains a path traversal vulnerability that can occur when JWT is used, via a /.. sequence in an...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-102764: BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability

• CVSS Score: 9.3 (CRITICAL)
• Date Added: 2026-10-16
• Description: BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-21589: Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability

• CVSS Score: 9.3 (CRITICAL)
• Date Added: 2026-10-15
• Description: Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center,...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-96951: Microsoft Windows Command Injection Vulnerability

• CVSS Score: 8.8 (HIGH)
• Date Added: 2026-10-13
• Description: Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability

• CVSS Score: 8.6 (HIGH)
• Date Added: 2026-10-13
• Description: Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2016-3081: Apache Struts Command Injection Vulnerability

• CVSS Score: 8.1 (HIGH)
• Date Added: 2026-10-08
• Description: Apache Struts contains a command injection vulnerability that could allow remote attackers to execute arbitrary code...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2015-5477: ISC BIND Data Processing Errors Vulnerability

• CVSS Score: 7.5 (HIGH)
• Date Added: 2026-10-08
• Description: ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-105133: Ahsay AhsayCBS Improper Authentication Vulnerability

• CVSS Score: 7.3 (HIGH)
• Date Added: 2026-10-14
• Description: Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2026-0322: Palo Alto Networks PAN-OS Code Injection Vulnerability

• CVSS Score: 7.2 (HIGH)
• Date Added: 2026-10-14
• Description: Palo Alto Networks PAN-OS contains a code injection vulnerability that could allow an authenticated attacker with...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2025-61624: Fortinet Multiple Products Path Traversal Vulnerability

• CVSS Score: 6.5 (MEDIUM)
• Date Added: 2026-10-16
• Description: FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager contain a path traversal vulnerability that may allow an...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CVE-2023-22894: Strapi Cleartext Storage of Sensitive Information Vulnerability

• CVSS Score: 4.9 (MEDIUM)
• Date Added: 2026-10-08
• Description: Strapi contains a cleartext storage of sensitive information vulnerability that could allow attackers with access to...
• Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

What This Means for You

If you run any of the affected products, patch immediately. Every vulnerability in this roundup is in CISA's KEV catalog, which lists only flaws with confirmed exploitation in the wild.

Use the CVSS Calculator to assess how these scores apply to your specific environment.

Cert Study Angles

These CVEs map directly to certification exam objectives. Use them as real-world case studies:

CompTIA Security+

• CVE-2026-105134 → D2 Threats & Vulnerabilities
• CVE-2015-3306 → D1 General Security Concepts
• CVE-2026-102764 → D2 Threats & Vulnerabilities
• CVE-2026-96951 → D2 Threats & Vulnerabilities
• CVE-2026-104935 → D2 Threats & Vulnerabilities
• CVE-2016-3081 → D2 Threats & Vulnerabilities
• CVE-2026-105133 → D2 Threats & Vulnerabilities
• CVE-2026-0322 → D2 Threats & Vulnerabilities
• CVE-2025-61624 → D3 Security Architecture

ISC2 CISSP

• CVE-2026-105134 → D6 Security Assessment
• CVE-2015-3306 → D5 IAM, D6 Security Assessment
• CVE-2026-76519 → D6 Security Assessment
• CVE-2021-3199 → D6 Security Assessment
• CVE-2026-102764 → D5 IAM, D6 Security Assessment
• CVE-2026-21589 → D6 Security Assessment
• CVE-2026-96951 → D6 Security Assessment
• CVE-2026-104935 → D5 IAM, D6 Security Assessment
• CVE-2016-3081 → D6 Security Assessment
• CVE-2015-5477 → D6 Security Assessment
• CVE-2026-105133 → D5 IAM, D6 Security Assessment
• CVE-2026-0322 → D4 Communication & Network, D6 Security Assessment
• CVE-2025-61624 → D6 Security Assessment
• CVE-2023-22894 → D6 Security Assessment, D8 Software Development

Cisco CCNA

• CVE-2026-21589 → D1 Network Fundamentals
• CVE-2025-61624 → D1 Network Fundamentals

See all CVEs mapped to your cert: Exploit Tracker

Tools to Help

• CVSS Calculator: Score these vulnerabilities for your specific environment
• Exploit Tracker: Filter KEV vulnerabilities by certification relevance
• Study Tracker: Track your exam objective completion
• Security+ Practice Quiz: Test your knowledge of vulnerability types and mitigations

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