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HackerStorm Vulnerability Priority Report – July 2026
July 2026 saw 26 new entries added to CISA's Known Exploited Vulnerabilities (KEV) catalog, dominated by targeting of enterprise collaboration platforms, edge network infrastructure, and web content management systems. Threat actors demonstrated a concentrated focus on management planes (Arista VCO, Cisco FMC) and enterprise application backbones (Microsoft SharePoint, Oracle EBS), utilizing deserialization, hardcoded authentication bypasses, and OS command injection to bypass traditional perimeter security controls. Security operations, vulnerability management leads, and infrastructure administrators must use this intelligence-led priority assessment to cut through raw CVSS noise and execute targeted remediation across high-exposure assets.
Reading time 10 minutes
Audience: Vulnerability Managers, Security Operations, CISOs, DevSecOps Teams
Reading Time: Approximately 10 minutes
26 KEV additions. 12 critical CVEs.
The Month in Numbers
The following figures reflect verified KEV additions and threat telemetry recorded during July 2026:
| Metric | Value |
| Total new KEV additions this month | 26 |
| CVSS Critical entries (9.0–10.0) | 12 |
| CVSS High entries (7.0–8.9) | 12 |
| Entries with confirmed active exploitation | 26 |
| Entries with public PoC or exploit code | 21 |
| Most affected vendor | Microsoft (5 entries) |
| Most common exploitation type | Remote Code Execution (RCE) / Command Injection (16 entries) |
| Sectors most targeted | Government / FCEB, Technology / SaaS, Financial Services, Critical Infrastructure |
Priority Vulnerabilities This Month
Vulnerabilities are ranked by operational risk—factoring in active exploitation telemetry, asset prevalence, and patch bypass mechanics—rather than relying solely on base CVSS scores.
| CVE | Vendor / Product | CVSS | Type | Why It's Priority |
| CVE-2026-16812 | Arista VeloCloud Orchestrator On-Prem | 10.0 | OS Command Injection | Operates at the central management plane of enterprise SD-WANs; unauthenticated execution gives attackers full administrative control over the orchestrator and all managed edge gateways. |
| CVE-2026-50522 | Microsoft SharePoint Server | 9.8 | Deserialization RCE | Actively exploited in post-patch zero-day campaigns against on-premise deployments to exfiltrate IIS machine keys, granting persistent domain access even after updating. |
| CVE-2026-20316 | Cisco Secure Firewall Management Center | 5.3 | Hard-coded Password | Despite a medium CVSS rating, static credentials allow unauthenticated login that threat actors chain with local privilege escalation to compromise primary firewall policy engines. |
| CVE-2026-25089 / CVE-2026-39808 | Fortinet FortiSandbox | 9.8 | OS Command Injection | Inspects high-trust files at security perimeters; unauthenticated command injection allows attackers to execute arbitrary code inside isolated inspection enclaves and access cached payloads. |
| CVE-2026-60137 / CVE-2026-63030 | WordPress Core | 5.9 / 9.8 | SQLi to RCE Chain | Resides in core WP_Query parameter parsing; unauthenticated attackers chain input handling defects with interpretation conflicts to achieve full web server takeover across thousands of sites. |
| CVE-2026-15409 / CVE-2026-15410 | SonicWall SMA1000 | 7.5 / 7.2 | SSRF & OS Command Injection | Directly exposes remote-access gateways, enabling external attackers to leverage Server-Side Request Forgery to reach internal hosts and execute administrative shell commands. |
| CVE-2026-0770 | Langflow | 9.8 | Untrusted Control Sphere RCE | Highlights the expanding attack surface of enterprise AI stack orchestrators, allowing unauthenticated remote code execution on core machine learning pipeline servers. |
This Month's Weekly KEV Reports - Full Index
This index provides a comprehensive weekly breakdown of all CISA KEV additions published throughout July 2026 and the adjoining transition period.
| Week | Article Title | KEV Additions | Link |
|---|---|---|---|
| 01–07 Jul | Weekly CISA KEV Updates: 06 July 2026 - One New Known Exploited Vulnerabilities Added | 3 | Weekly CISA KEV Updates: 06 July 2026 |
| 08–14 Jul | Weekly CISA KEV Updates: 13 July 2026 - Seven New Known Exploited Vulnerabilities Added | 8 | Weekly CISA KEV Updates: 13 July 2026 |
| 15–21 Jul | Weekly CISA KEV Updates: 20 July 2026 - Nine New Known Exploited Vulnerabilities Added | 9 | Weekly CISA KEV Updates: 20 July 2026 |
| 22–28 Jul | Weekly CISA KEV Updates: 28 July 2026 - Eight New Known Exploited Vulnerabilities Added | 8 | Weekly CISA KEV Updates: 28 July 2026 |
| 29 Jul–03 Aug | Weekly CISA KEV Updates: 03 August 2026 - One New Known Exploited Vulnerabilities Added | 1 | Weekly CISA KEV Updates: 03 August 2026 |
Threat Landscape Context
July's KEV activity reveals a decisive operational pivot toward management plane convergence and security infrastructure targeting. Threat groups are bypassing traditional host endpoints to compromise central management platforms—such as Arista VeloCloud Orchestrators and Cisco Firewall Management Centers—effectively turning enterprise security tools into broadcast nodes for lateral movement. Furthermore, the rapid exploitation of deserialization vulnerabilities in SharePoint (CVE-2026-50522 and CVE-2026-58644) underscores that on-premise collaboration servers remain primary targets for credential exfiltration and key theft. Notably, the emergence of AI pipeline vulnerabilities like Langflow (CVE-2026-0770, CVE-2026-55255) indicates that threat actors are aggressively mapping modern corporate AI infrastructure alongside legacy web content management systems. Cumulative monthly data demonstrates that adversary tradecraft has shifted from simple edge exploitation to systematic takeover of centralized configuration engines.
Sector Exposure Summary
| Sector | Exposure Level | Key CVEs This Month | Recommended Focus |
| Government / FCEB | High | CVE-2026-50522, CVE-2026-16812, CVE-2026-20316 | Execute emergency updates on on-prem SharePoint clusters and immediately isolate network management interfaces behind MFA-gated bastions. |
| Healthcare | High | CVE-2026-58644, CVE-2026-25089, CVE-2026-15409 | Perform log analysis for unauthorized file extractions on perimeter sandboxes and rotate IIS machine keys on exposed SharePoint instances. |
| Financial Services | High | CVE-2026-46817, CVE-2026-16232, CVE-2026-16812 | Restrict HTTP access to Oracle EBS payment gateways and audit SmartConsole management server login tokens. |
| Critical Infrastructure | High | CVE-2023-4346, CVE-2021-27137, CVE-2026-20316 | Segment operational technology (OT) gateway protocols (KNX) and replace unsupported legacy router firmware (DD-WRT). |
| Technology / SaaS | High | CVE-2026-0770, CVE-2026-55255, CVE-2026-63030 | Block unauthenticated public access to AI workflow orchestrators and sanitize author__not_in inputs across custom WordPress themes. |
Hackerstorm Analysis
Security operations teams are systematically underestimating the operational blast radius of low-CVSS management plane vulnerabilities. A prime example is Cisco FMC (CVE-2026-20316): rated 5.3 CVSS, it was frequently deprioritized by automated patch workflows, yet threat actors actively used its hardcoded credentials as an initial access vector to pivot into core network policy nodes. Furthermore, July's telemetry demonstrates that CISA KEV additions are increasingly functioning as lagging indicators for cryptographic persistence. In the case of SharePoint CVE-2026-50522, adversaries exfiltrated IIS machine keys prior to catalog listing, meaning that applying vendor patches alone leaves organizations compromised if cryptographic keys and tokens are not explicitly rotated. To stop recurring breaches, defenders must shift from reactive CVE patching to proactive credential and session invalidation across all compromised management tiers.
Further Reading
🔗 CVSS vs EPSS: How to Prioritise Vulnerabilities by Real Exploitation Risk
Why read this: Directly extends this month's ranking logic — the priority table above uses the same exploitation-first, attribution-aware methodology over static CVSS ordering.
🔗 Vulnerability Backlog: Why CVSS Prioritisation Is Broken and How to Fix It
Why read this: Companion piece on why EPSS + KEV + asset reachability outperforms CVSS-only triage — relevant given the Check Point vs. Ubiquiti ranking discussed above.
🔗 Vulnerability Management: Operational Risk & Exposure-Based Prioritization
Why read this: Practical exposure/reachability framework for triaging a 23-entry month like this one without treating every CVSS-9+ entry as equally urgent.
About This Report
Attribution Note
This analysis is based on publicly available reporting and security research summaries. Some technical details may change as additional information becomes available.
Author Information
Timur Mehmet | Founder & Lead Editor
Timur is a veteran Information Security professional with a career spanning over three decades. Since the 1990s, he has led security initiatives across high-stakes sectors, including Finance, Telecommunications, Media, and Energy. Professional qualifications over the years have included CISSP, ISO27000 Auditor, ITIL and technologies such as Networking, Operating Systems, PKI, Firewalls. For more information including independent citations and credentials, visit our About page.
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- Fact-Checking: All statistics and claims are verified against primary sources and authoritative reports
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Source Transparency
CISA KEV Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
National Vulnerability Database (NVD): https://nvd.nist.gov/
Vendor Security Advisories: Cisco PSIRT, Microsoft Security Response Center (MSRC), Fortinet Guard Labs, Arista Security Advisory, Check Point Advisory, WordPress Security Release, Oracle Critical Patch Update, SonicWall Security Center, Adobe Security Bulletin, Langflow GitHub Advisories.
Threat Intelligence & Telemetry: watchTowr Labs, Defused Cyber, Resecurity Threat Research, SOC Prime Threat Detection, SentinelOne Database.