EMERGENCY CVE-2026-1340 9.8 Ivanti Endpoint Manager Mobile (EPMM) contains a code injection vulnerability that allows unauthenticated attackers to achieve remote code execution on the mobile device management server. Compromising the MDM server provides access to all managed mobile device configurations, policies, and potentially the ability to push malicious profiles to enrolled devices. | ACT NOW CVE-2026-1281 9.8 Ivanti Endpoint Manager Mobile (EPMM) contains a critical code injection vulnerability (CVE-2026-1281, CVSS 9.8) that allows unauthenticated remote attackers to execute arbitrary code. With EPSS 64.8% and KEV listing, this vulnerability in the mobile device management platform threatens the security of every managed mobile device in the organization, as EPMM has the ability to push configurations, certificates, and apps to enrolled devices. | EMERGENCY CVE-2025-40551 9.8 SolarWinds Web Help Desk contains an unauthenticated Java deserialization vulnerability (CVE-2025-40551, CVSS 9.8) that enables remote code execution. With EPSS 80.6% and KEV listing, this is the more severe of two concurrent WHD vulnerabilities, allowing attackers to execute arbitrary commands on the host server without any credentials. | ACT NOW CVE-2025-40536 8.1 SolarWinds Web Help Desk contains a security control bypass vulnerability (CVE-2025-40536) that allows unauthenticated attackers to access restricted functionality. With EPSS 69% and KEV listing, this CVSS 8.1 vulnerability is particularly concerning given SolarWinds' history of being targeted in supply chain attacks and the sensitive IT service data typically stored in help desk systems. | EMERGENCY CVE-2026-24858 9.8 Fortinet FortiAnalyzer and FortiManager contain a critical authentication bypass vulnerability (CVE-2026-24858, CVSS 9.8) that allows unauthenticated remote attackers to gain administrative access through an alternate authentication path. With EPSS 2.8% but KEV listing confirming active exploitation, this vulnerability threatens the security management infrastructure that organizations rely on to protect their networks. | ACT NOW CVE-2026-21509 7.8 Microsoft Office contains a security feature bypass (CVE-2026-21509, CVSS 7.8) where reliance on untrusted inputs in security decisions allows local attackers to bypass protections designed to prevent execution of malicious content. KEV-listed with EPSS 9.3%, this vulnerability enables attackers to circumvent Office security features like Protected View or macro restrictions through crafted documents. | EMERGENCY CVE-2026-24423 9.8 SmarterTools SmarterMail prior to build 9511 contains a second critical vulnerability (CVE-2026-24423) — an unauthenticated remote code execution flaw in the ConnectToHub API method. An attacker can redirect the SmarterMail server to connect to a malicious HTTP endpoint that serves OS commands for execution. KEV-listed with EPSS 29%, this is chainable with CVE-2026-23760 for complete server compromise. | EMERGENCY CVE-2026-23760 9.8 SmarterTools SmarterMail prior to build 9511 contains a critical authentication bypass in the password reset API (CVE-2026-23760) that allows unauthenticated attackers to reset system administrator passwords without verification. With EPSS 65% and KEV listing, this trivially exploitable vulnerability enables complete email server takeover, compromising all hosted mailboxes and organizational communications. | ACT NOW CVE-2026-20045 8.2 Cisco Unified Communications Manager and related products contain a code injection vulnerability (CVE-2026-20045) that allows unauthenticated remote attackers to execute arbitrary code. This KEV-listed vulnerability affects the core enterprise voice/video infrastructure including Unified CM, IM&P, Unity Connection, and Webex Calling Dedicated Instance, making it a high-priority threat for organizations dependent on Cisco collaboration tools. | ACT NOW CVE-2026-24061 9.8 GNU Inetutils telnetd through version 2.7 contains a critical authentication bypass that allows remote attackers to gain root access by setting the USER environment variable to '-f root' during TELNET negotiation. With EPSS 75% and KEV listing, this trivially exploitable vulnerability (CVE-2026-24061) has been widely weaponized. Public PoC is available and patches exist. | EMERGENCY CVE-2026-20963 9.8 Microsoft Office SharePoint contains a deserialization vulnerability (CVE-2026-20963) that allows authenticated users to execute arbitrary code over the network through crafted serialized objects. KEV-listed with public PoC, this CVSS 8.8 vulnerability enables any SharePoint user to escalate to server-level code execution, making it a critical threat for organizations relying on SharePoint for document management and collaboration. | ACT NOW CVE-2026-22200 7.5 Arbitrary file disclosure in osTicket 1.18.x before 1.18.3 and 1.17.x before 1.17.7 allows unauthenticated attackers to read sensitive server files by injecting malicious PHP filter expressions into ticket descriptions that are processed during PDF export. The vulnerability exploits insufficient sanitization in the mPDF library integration, enabling attackers to embed arbitrary file contents as images in generated PDFs when exporting tickets. Public exploit code exists and the issue affects default configurations where guest ticket creation is enabled. | EMERGENCY CVE-2026-21891 9.4 ZimaOS (fork of CasaOS) through 1.5.0 has an authentication bypass where passwords for system service accounts are not properly validated during login. Attackers can access the system using known service account names with any password. PoC available, EPSS 13.6%. | ACT NOW CVE-2025-66376 7.2 Zimbra Collaboration Suite (ZCS) 10.x contains a stored XSS vulnerability in the Classic UI that allows attackers to execute arbitrary JavaScript through CSS @import directives in HTML emails. KEV-listed, this vulnerability (CVE-2025-66376) enables session hijacking and account takeover when administrators or users view malicious emails, making it a high-value target for email-based espionage campaigns. |

EMERGENCY CVE-2026-1340 9.8 Ivanti Endpoint Manager Mobile (EPMM) contains a code injection vulnerability that allows unauthenticated attackers to achieve remote code execution on the mobile device management server. Compromising the MDM server provides access to all managed mobile device configurations, policies, and potentially the ability to push malicious profiles to enrolled devices. | ACT NOW CVE-2026-1281 9.8 Ivanti Endpoint Manager Mobile (EPMM) contains a critical code injection vulnerability (CVE-2026-1281, CVSS 9.8) that allows unauthenticated remote attackers to execute arbitrary code. With EPSS 64.8% and KEV listing, this vulnerability in the mobile device management platform threatens the security of every managed mobile device in the organization, as EPMM has the ability to push configurations, certificates, and apps to enrolled devices. | EMERGENCY CVE-2025-40551 9.8 SolarWinds Web Help Desk contains an unauthenticated Java deserialization vulnerability (CVE-2025-40551, CVSS 9.8) that enables remote code execution. With EPSS 80.6% and KEV listing, this is the more severe of two concurrent WHD vulnerabilities, allowing attackers to execute arbitrary commands on the host server without any credentials. | ACT NOW CVE-2025-40536 8.1 SolarWinds Web Help Desk contains a security control bypass vulnerability (CVE-2025-40536) that allows unauthenticated attackers to access restricted functionality. With EPSS 69% and KEV listing, this CVSS 8.1 vulnerability is particularly concerning given SolarWinds' history of being targeted in supply chain attacks and the sensitive IT service data typically stored in help desk systems. | EMERGENCY CVE-2026-24858 9.8 Fortinet FortiAnalyzer and FortiManager contain a critical authentication bypass vulnerability (CVE-2026-24858, CVSS 9.8) that allows unauthenticated remote attackers to gain administrative access through an alternate authentication path. With EPSS 2.8% but KEV listing confirming active exploitation, this vulnerability threatens the security management infrastructure that organizations rely on to protect their networks. | ACT NOW CVE-2026-21509 7.8 Microsoft Office contains a security feature bypass (CVE-2026-21509, CVSS 7.8) where reliance on untrusted inputs in security decisions allows local attackers to bypass protections designed to prevent execution of malicious content. KEV-listed with EPSS 9.3%, this vulnerability enables attackers to circumvent Office security features like Protected View or macro restrictions through crafted documents. | EMERGENCY CVE-2026-24423 9.8 SmarterTools SmarterMail prior to build 9511 contains a second critical vulnerability (CVE-2026-24423) — an unauthenticated remote code execution flaw in the ConnectToHub API method. An attacker can redirect the SmarterMail server to connect to a malicious HTTP endpoint that serves OS commands for execution. KEV-listed with EPSS 29%, this is chainable with CVE-2026-23760 for complete server compromise. | EMERGENCY CVE-2026-23760 9.8 SmarterTools SmarterMail prior to build 9511 contains a critical authentication bypass in the password reset API (CVE-2026-23760) that allows unauthenticated attackers to reset system administrator passwords without verification. With EPSS 65% and KEV listing, this trivially exploitable vulnerability enables complete email server takeover, compromising all hosted mailboxes and organizational communications. | ACT NOW CVE-2026-20045 8.2 Cisco Unified Communications Manager and related products contain a code injection vulnerability (CVE-2026-20045) that allows unauthenticated remote attackers to execute arbitrary code. This KEV-listed vulnerability affects the core enterprise voice/video infrastructure including Unified CM, IM&P, Unity Connection, and Webex Calling Dedicated Instance, making it a high-priority threat for organizations dependent on Cisco collaboration tools. | ACT NOW CVE-2026-24061 9.8 GNU Inetutils telnetd through version 2.7 contains a critical authentication bypass that allows remote attackers to gain root access by setting the USER environment variable to '-f root' during TELNET negotiation. With EPSS 75% and KEV listing, this trivially exploitable vulnerability (CVE-2026-24061) has been widely weaponized. Public PoC is available and patches exist. | EMERGENCY CVE-2026-20963 9.8 Microsoft Office SharePoint contains a deserialization vulnerability (CVE-2026-20963) that allows authenticated users to execute arbitrary code over the network through crafted serialized objects. KEV-listed with public PoC, this CVSS 8.8 vulnerability enables any SharePoint user to escalate to server-level code execution, making it a critical threat for organizations relying on SharePoint for document management and collaboration. | ACT NOW CVE-2026-22200 7.5 Arbitrary file disclosure in osTicket 1.18.x before 1.18.3 and 1.17.x before 1.17.7 allows unauthenticated attackers to read sensitive server files by injecting malicious PHP filter expressions into ticket descriptions that are processed during PDF export. The vulnerability exploits insufficient sanitization in the mPDF library integration, enabling attackers to embed arbitrary file contents as images in generated PDFs when exporting tickets. Public exploit code exists and the issue affects default configurations where guest ticket creation is enabled. | EMERGENCY CVE-2026-21891 9.4 ZimaOS (fork of CasaOS) through 1.5.0 has an authentication bypass where passwords for system service accounts are not properly validated during login. Attackers can access the system using known service account names with any password. PoC available, EPSS 13.6%. | ACT NOW CVE-2025-66376 7.2 Zimbra Collaboration Suite (ZCS) 10.x contains a stored XSS vulnerability in the Classic UI that allows attackers to execute arbitrary JavaScript through CSS @import directives in HTML emails. KEV-listed, this vulnerability (CVE-2025-66376) enables session hijacking and account takeover when administrators or users view malicious emails, making it a high-value target for email-based espionage campaigns. |