Recorded Future Reported 59 High-Impact Vulnerabilities in June, 56 Actively Exploited

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Summary

Recorded Future identified 59 high-impact vulnerabilities in June 2026; 23 were in CISA’s KEV catalog, and 56 were reported as actively exploited. The report also highlights malware-linked campaigns, widespread RCE exposure, and public PoCs.

Key points

  • Insikt Group identified 59 high-impact vulnerabilities across 36 vendors; 30 received a Very Critical Recorded Future Risk Score, a 47% increase from May.
  • The report says 23 vulnerabilities were listed in CISA’s KEV catalog, 33 were reported by vendors, and three were primarily surfaced through honeypot data.
  • Fifty-six vulnerabilities were reported as actively exploited in June; the table excludes three CVEs associated with honeypot activity.
  • Twenty-five vulnerabilities enabled remote code execution, and public proof-of-concept exploits were identified for 53 of the 59 vulnerabilities.
  • Campaign activity included exploitation linked to SharkLoader and Cobalt Strike, Lazarus Group’s COPPERHEDGE, APT36 operations, a C0XMO botnet, and Qilin ransomware.
  • Four vulnerabilities in the prominent disclosures table were at least five years old, and the fastest observed disclosure-to-exploitation interval was under one day.

Article Details

Publisher
Recorded Future
Report Period
June 2026
Scope
High-impact vulnerabilities and related exploitation activity identified in June 2026, including actively exploited CVEs, malware-linked activity, and proof-of-concept exploits.
Sample Size
59 high-impact vulnerabilities; the actively exploited vulnerability table lists 56, excluding three CVEs associated with honeypot activity.
Key Statistics
  • 30 of 59 vulnerabilities had a Very Critical Recorded Future Risk Score.
  • 23 of 59 vulnerabilities were included in CISA's Known Exploited Vulnerabilities catalog; 33 were reported by vendors and three were primarily surfaced through honeypot data.
  • The 59 vulnerabilities affected products from 36 vendors; Microsoft accounted for approximately 17%.
  • 25 of 59 vulnerabilities enabled remote code execution, affecting products from 18 vendors.
  • Public proof-of-concept exploits were identified for 53 of 59 vulnerabilities.
Recommendations
  • Prioritize vulnerabilities based on likelihood of exploitation as well as severity.
  • Verify the validity and efficacy of public proof-of-concept exploits before testing them.
  • Identify and prioritize internet-facing assets vulnerable to specific CVEs.
  • Assess vulnerabilities in vendors' and suppliers' internet-facing systems.

CVE

CVE-2016-4437CVE-2016-4437CVE-2020-17103CVE-2020-17103CVE-2021-26855CVE-2021-26855CVE-2021-27076CVE-2021-27076CVE-2021-27137CVE-2021-27137CVE-2021-36260CVE-2021-36260CVE-2022-0492CVE-2022-0492CVE-2022-27925CVE-2022-27925CVE-2022-40684CVE-2022-40684CVE-2022-41082CVE-2022-41082CVE-2023-20198CVE-2023-20198CVE-2023-32315CVE-2023-32315CVE-2023-46747CVE-2023-46747CVE-2024-21182CVE-2024-21182CVE-2024-21762CVE-2024-21762CVE-2024-36401CVE-2024-36401CVE-2025-48595CVE-2025-48595CVE-2025-55182CVE-2025-55182CVE-2025-6218CVE-2025-6218CVE-2025-67038CVE-2025-67038CVE-2025-8088CVE-2025-8088CVE-2026-10520CVE-2026-10520CVE-2026-11645CVE-2026-11645CVE-2026-12569CVE-2026-12569CVE-2026-20230CVE-2026-20230CVE-2026-20245CVE-2026-20245CVE-2026-20253CVE-2026-20253CVE-2026-20262CVE-2026-20262CVE-2026-21509CVE-2026-21509CVE-2026-21513CVE-2026-21513CVE-2026-25089CVE-2026-25089CVE-2026-25939Insikt Group created Nuclei templates to detect two of the vulnerabilities featured in this month’s report: CVE-2026-35616 affecting Fortinet FortiClient EMS and CVE-2026-25939 affecting Frangoteam FUXA.CVE-2026-28318CVE-2026-28318CVE-2026-3300CVE-2026-3300CVE-2026-33825CVE-2026-33825CVE-2026-34908CVE-2026-34908CVE-2026-34909CVE-2026-34909CVE-2026-34910CVE-2026-34910CVE-2026-35273CVE-2026-35273CVE-2026-35616Insikt Group created Nuclei templates to detect two of the vulnerabilities featured in this month’s report: CVE-2026-35616 affecting Fortinet FortiClient EMS and CVE-2026-25939 affecting Frangoteam FUXA.CVE-2026-39808CVE-2026-39808CVE-2026-39813CVE-2026-39813CVE-2026-4020CVE-2026-4020CVE-2026-41089CVE-2026-41089CVE-2026-41091CVE-2026-41091CVE-2026-42271CVE-2026-42271CVE-2026-44963CVE-2026-44963CVE-2026-45247CVE-2026-45247CVE-2026-46817CVE-2026-46817CVE-2026-48558CVE-2026-48558CVE-2026-48907CVE-2026-48907CVE-2026-5027CVE-2026-5027CVE-2026-50751CVE-2026-50751CVE-2026-54420CVE-2026-54420CVE-2026-7473CVE-2026-7473CVE-2026-8206CVE-2026-8206

Threat Actors

Malware

Vendors

Products

Android FrameworkAndroid FrameworkApache ShiroApache ShiroBackup and ReplicationVeeam Backup and ReplicationBIG-IPF5 BIG-IPBusiness Productivity ServersMicrosoft SharePoint and Business Productivity ServersCatalyst SD-WAN ControllerCatalyst SD-WAN ManagerCisco Catalyst SD-WAN Manager and ControllerChromium V8Google Chromium V8 and ChromecPanel PluginLiteSpeed cPanel PluginDD-WRTDD-WRT FirmwareDefender Antimalware PlatformMicrosoft Defender Antimalware PlatformEDS5000Lantronix EDS5000EOSArista EOSEverest Forms ProWPEverest Everest Forms ProExchange ServerMicrosoft Exchange Server 2016 and 2019Express 7Ubiquiti UniFi OS, UniFi OS Server, Express 7, and UDMFlexPLMPTC Windchill, Windchill PDMLink, and FlexPLMFortiClient EMSInsikt Group created Nuclei templates to detect two of the vulnerabilities featured in this month’s report: CVE-2026-35616 affecting Fortinet FortiClient EMS and CVE-2026-25939 affecting Frangoteam FUXA.FortiOSFortinet FortiOS, FortiProxy, and FortiSwitchManagerFortiProxyFortinet FortiOS, FortiProxy, and FortiSwitchManagerFortiSandboxFortiSandbox PaaSFortiSandbox PaaSFortiSandbox PaaSFortiSwitchManagerFortinet FortiOS, FortiProxy, and FortiSwitchManagerFull Page Cache Warmer for Magento 2Mirasvit Full Page Cache Warmer for Magento 2FUXAInsikt Group created Nuclei templates to detect two of the vulnerabilities featured in this month’s report: CVE-2026-35616 affecting Fortinet FortiClient EMS and CVE-2026-25939 affecting Frangoteam FUXA.Google ChromeGoogle Chromium V8 and ChromeGravity SMTPGravity SMTPIOS XE SoftwareCisco IOS XE SoftwareJoomla Content Editor (JCE)Joomla Content Editor (JCE) extension for JoomlaKirki – Freeform Page Builder, Website Builder & CustomizerKirki – Freeform Page Builder, Website Builder & CustomizerLangflowLangflowLiteLLMBerriAI LiteLLMMalware Protection EngineMicrosoft Malware Protection EngineMicrosoft 365 Apps for EnterpriseMicrosoft 365 Apps for Enterprise and Office 2016Microsoft SharePointMicrosoft SharePoint and Business Productivity ServersMicrosoft WindowsMicrosoft Windows 10/11 and Windows Server 2019Office 2016Microsoft 365 Apps for Enterprise and Office 2016OpenfireOpenfireOracle PaymentsOracle PaymentsPeopleSoft Enterprise PeopleToolsOracle PeopleSoft Enterprise PeopleToolsQuantum Security GatewayCheck Point Security Gateway, Quantum Security Gateway, and Spark FirewallsReact Server ComponentsMeta React Server Components packagesSecurity GatewayCheck Point Security Gateway, Quantum Security Gateway, and Spark FirewallsSentryIvanti SentryServ-USolarWinds Serv-USpark FirewallsCheck Point Security Gateway, Quantum Security Gateway, and Spark FirewallsSplunk EnterpriseSplunk EnterpriseUDMUbiquiti UniFi OS, UniFi OS Server, UDM, and UDM-ProUDM-ProUbiquiti UniFi OS, UniFi OS Server, UDM, and UDM-ProUniFi OSUbiquiti UniFi OS, UniFi OS Server, UDM, and UDM-ProUniFi OS ServerUbiquiti UniFi OS, UniFi OS Server, UDM, and UDM-ProUnified Communications ManagerCisco Unified Communications ManagerWebLogic ServerOracle WebLogic ServerWindchillPTC Windchill, Windchill PDMLink, and FlexPLMWindchill PDMLinkPTC Windchill, Windchill PDMLink, and FlexPLMWindows ServerMicrosoft Windows 10/11 and Windows Server 2019WinRARWinRAR

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