CISA known exploited vulnerabilities
Under attack. Patch these first.
These flaws are on CISA’s Known Exploited Vulnerabilities catalog. Attackers are already using them.
Alerts tracked
2625
Security flaws we track for Upstate SC businesses.
Known exploited
503
On CISA’s list of vulnerabilities attackers are actively using. Patch these first.
New exploited this month
43
Fresh additions to that CISA list since the first of the month.Feeds last synced Aug 19, 2026, 6:00 AM UTC.
What do these terms mean?
What is a CVE?
A CVE (Common Vulnerabilities and Exposures) is a public tracking number for a specific security flaw in software or hardware, similar to a SKU for a bug.
What is the CISA Known Exploited Vulnerabilities (KEV) catalog?
The CISA KEV catalog is the U.S. government’s short list of vulnerabilities that attackers are actively exploiting in the wild.
Who publishes Security Briefs on PremierePC?
PremierePC tracks alerts from CISA KEV, Microsoft MSRC, FBI IC3 industry advisories, and other U.S. feeds, then summarizes what each one means for Upstate SC businesses.
How often are Security Briefs updated?
Feeds sync automatically on a schedule. We publish new KEV entries, Microsoft advisories, and FBI alerts as they appear in the source catalogs.
Showing 24 of 503 known-exploited alerts.
Apple macOS Improper Authentication Vulnerability
Apple macOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-65400). Apple macOS contains an improper authentication vulnerability that could allow an attacker on the network to authenticate to Screen Sharing without valid credentials. CISA remediation due date: 2026-08-21. If you need help checking exposure, call (864) 335-9223.
Broadcom VMware vCenter Path Traversal Vulnerability
Broadcom VMware vCenter is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-59310). Broadcom VMware vCenter contains a path traversal vulnerability which could allow a threat actor with network access to vCenter to execute arbitrary code. CISA remediation due date: 2026-08-21. If you need help checking exposure, call (864) 335-9223.
Microsoft SharePoint Weak Authentication Vulnerability
Microsoft SharePoint is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-55040). Microsoft SharePoint contains a weak authentication vulnerability which allows an unauthorized attacker to bypass a security feature over a network. CISA remediation due date: 2026-08-21. If you need help checking exposure, call (864) 335-9223.
Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability
Microsoft Internet Key Exchange (IKE) Service Extensions is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-33824). Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution. CISA remediation due date: 2026-08-21. If you need help checking exposure, call (864) 335-9223.
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Microsoft Windows Ancillary Function Driver for WinSock is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-68820). Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally. CISA remediation due date: 2026-08-25. If you need help checking exposure, call (864) 335-9223.
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) vulnerability
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-20349). Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. CISA remediation due date: 2026-08-14. If you need help checking exposure, call (864) 335-9223.
Progress LoadMaster Command Injection Vulnerability
Progress LoadMaster is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-8037). Progress LoadMaster contains a command injection vulnerability that allows an un-authenticated attacker to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in multiple command endpoints. CISA remediation due date: 2026-08-10. If you need help checking exposure, call (864) 335-9223.
Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
Apache Tomcat is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-34486). Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor. This vulnerability can be chained with CVE‑2025‑24813. CISA remediation due date: 2026-08-07. If you need help checking exposure, call (864) 335-9223.
N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
N-able N-central is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-18556). N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass. CISA remediation due date: 2026-08-07. If you need help checking exposure, call (864) 335-9223.
N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
N-able N-central is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-18577). N-able N-central contains an authentication bypass using an alternate path or channel allows for authentication bypass and account takeover in N-central. This vulnerability is the result of an incomplete patch for CVE-2026-18556. CISA remediation due date: 2026-08-06. If you need help checking exposure, call (864) 335-9223.
Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability
Cisco Secure Firewall Management Center (FMC) is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-20316). Cisco Secure Firewall Management Center (FMC) formerly known as Firepower Management Center contains a use of hard-coded password vulnerability that could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. CISA remediation due date: 2026-08-01. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-68686). Fortinet FortiOS contains an exposure of sensitive information to an unauthorized actor vulnerability. This may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level. CISA remediation due date: 2026-08-10. If you need help checking exposure, call (864) 335-9223.
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Microsoft SharePoint is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-50522). Microsoft SharePoint contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network. CISA remediation due date: 2026-07-25. If you need help checking exposure, call (864) 335-9223.
WordPress Core Interpretation Conflict Vulnerability
WordPress Core is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-63030). WordPress Core contains an interpretation conflict vulnerability that could allow an attacker to perform SQL Injection and achieve Remote Code Execution. This vulnerability can be chained with CVE-2026-60137. CISA remediation due date: 2026-07-24. If you need help checking exposure, call (864) 335-9223.
WordPress Core SQL Injection Vulnerability
WordPress Core is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-60137). WordPress Core contains a SQL injection vulnerability when a plugin or theme passes untrusted input to the parameter. This vulnerability can be chained with CVE-2026-63030 to allow an unauthenticated attacker to gain remote code execution on default WordPress installations. CISA remediation due date: 2026-08-04. If you need help checking exposure, call (864) 335-9223.
Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
Langflow Langflow is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-0770). Langflow contains an inclusion of functionality from untrusted control sphere vulnerability that allows remote attackers to execute arbitrary code on affected installations. CISA remediation due date: 2026-07-24. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
DD-WRT Stack-Based Buffer Overflow Vulnerability
DD-WRT DD-WRT is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2021-27137). DD-WRT contains a stack-based buffer overflow vulnerability that could allow an unauthenticated attacker to overflow an internal buffer used by UPnP and trigger a code execution vulnerability. CISA remediation due date: 2026-07-24. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Fortinet FortiSandbox OS Command Injection Vulnerability
Fortinet FortiSandbox is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-39808). Fortinet FortiSandbox contains an OS command injection vulnerability that could allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests. CISA remediation due date: 2026-07-19. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiSandbox OS Command Injection Vulnerability
Fortinet FortiSandbox is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-25089). Fortinet FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS contain an OS command injection vulnerability that allows an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. CISA remediation due date: 2026-07-19. If you need help checking exposure, call (864) 335-9223.
Oracle E-Business Suite Improper Privilege Management Vulnerability
Oracle E-Business Suite is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-46817). Oracle E-Business Suite contains an improper privilege management vulnerability that allows an unauthenticated attacker with network access via HTTP to compromise Oracle Payments. Successful attacks of this vulnerability can result in takeover of Oracle Payments. CISA remediation due date: 2026-07-18. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
KNX Protocol Connection Authorization Option 1 vulnerability
KNX Association KNX Protocol Connection Authorization Option 1 is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2023-4346). KNX Association KNX Protocol Connection Authorization Option 1 contains an overly restrictive account lockout mechanism vulnerability that could allow an attacker to purge all devices without additional security options enabled and set a BCU key to lock the device. CISA remediation due date: 2026-07-29. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Microsoft Active Directory Federation Services is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-56155). Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally. CISA remediation due date: 2026-07-28. If you need help checking exposure, call (864) 335-9223.
SonicWall SMA1000 Appliances Code Injection Vulnerability
SonicWall SMA1000 Appliances is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-15410). SonicWall SMA1000 Appliances contain a code injection vulnerability which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands. CISA remediation due date: 2026-07-17. If you need help checking exposure, call (864) 335-9223.
SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
SonicWall SMA1000 Appliances is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-15409). SonicWall SMA1000 Appliances contain a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to potentially cause the appliance to make requests to unintended location. CISA remediation due date: 2026-07-17. If you need help checking exposure, call (864) 335-9223.