Skip to main content

CVE tracking · CISA known exploited

Security Briefs: vulnerability alerts in plain English

We track CISA KEV, Microsoft advisories, and FBI alerts, then tell you what’s affected and whether attackers are already using it.

Alerts tracked

3939

Security flaws we track for Upstate SC businesses.

Known exploited

545

On CISA’s list of vulnerabilities attackers are actively using. Patch these first.

New exploited this month

2

Fresh additions to that CISA list since the first of the month.Feeds last synced Oct 5, 2026, 6:01 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 545 alerts from the selected feed.

Actively exploited (KEV)

CVE-2026-88779

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Citrix NetScaler is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-88779). Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service. CISA remediation due date: 2026-10-07. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-104286

Fortinet FortiMail Path Traversal Vulnerability

Fortinet FortiMail is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-104286). Fortinet FortiMail contains a path traversal and an improper neutralization of NULL byte or NULL character vulnerability that may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests. CISA remediation due date: 2026-10-04. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-76504

Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability

Cisco Catalyst SD-WAN Manager is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76504). Cisco Catalyst SD-WAN Manager contains a hex encoding vulnerability that could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user due to improper handling of URI encoding in an HTTP request. CISA remediation due date: 2026-10-03. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-86950

Apple Multiple Products Out-of-Bounds Write Vulnerability

Apple Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-86950). Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution. CISA remediation due date: 2026-10-02. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-88772

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Citrix NetScaler is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-88772). Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial of service CISA remediation due date: 2026-09-30. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-88771

Citrix NetScaler Improper Input Validation Vulnerability

Citrix NetScaler is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-88771). Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands. CISA remediation due date: 2026-09-30. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-87902

WordPress Core Remote File Inclusion Vulnerability

WordPress Core is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-87902). WordPress Core contains a remote file inclusion vulnerability which could allow an unauthenticated attacker to make page-template resolution include a chosen readable local `.php` file outside the active theme directories, leading to remote code execution. CISA remediation due date: 2026-09-28. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-65660

Microsoft SharePoint Code Injection Vulnerability

Microsoft SharePoint is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-65660). Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network. CISA remediation due date: 2026-09-28. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-71362

Adobe Commerce and Magento Incorrect Authorization Vulnerability

Adobe Commerce and Magento is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-71362). Adobe Commerce and Magento contains an incorrect authorization vulnerability that could allow an attacker to leverage this vulnerability to gain elevated access to sensitive resources without any user interaction. CISA remediation due date: 2026-09-27. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-53266

Linux Kernel Out-of-Bounds Write Vulnerability

Linux Kernel is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-53266). Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version. CISA remediation due date: 2026-09-21. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2025-39964

Linux Kernel Race Condition Vulnerability

Linux Kernel is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-39964). Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state. CISA remediation due date: 2026-09-21. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2025-39682

Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability

Linux Kernel is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-39682). Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version. CISA remediation due date: 2026-09-21. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-76460

Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability

Cisco Identity Services Engine is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76460). Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) contain an incorrect use of privileged APIs vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to the affected device by bypassing the web-based management interface. CISA remediation due date: 2026-09-19. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-58704

Google Pixel Improper Authorization Vulnerability

Google Pixel is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-58704). Google Pixel devices contain an improper authorization vulnerability in the cellular modem. A logic error may allow an attacker to bypass permission checks and escalate privileges. CISA remediation due date: 2026-09-19. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-76461

Cisco Secure Email Gateway SQL Injection Vulnerability

Cisco Secure Email Gateway is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76461). Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. CISA remediation due date: 2026-09-17. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-84869

ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

ConnectWise ScreenConnect is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-84869). ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to transfer and execute files through an active remote session without authorization or host confirmation. CISA remediation due date: 2026-09-14. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-87491

Google Chromium V8 Out of Bounds Write Vulnerability

Google Chromium V8 is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-87491). Google Chromium V8 contains an out of bounds write vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera. CISA remediation due date: 2026-09-23. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-20079

Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability

Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-20079). Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain an authentication Bypass using an alternate path or channel vulnerability that could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-19490

Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability

Citrix NetScaler is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-19490). Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2025-25249

Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability

Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-25249). Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-86218

N-able N-central Static Code Injection Vulnerability

N-able N-central is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-86218). N-able N-central contains a static code injection vulnerability that could allow for pre-authentication remote code execution. CISA remediation due date: 2026-09-11. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-85880

Microsoft Windows Heap-Based Buffer Overflow Vulnerability

Microsoft Windows is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-85880). Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally. CISA remediation due date: 2026-09-22. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-81963

Microsoft Windows Link Following Vulnerability

Microsoft Windows is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-81963). Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM. CISA remediation due date: 2026-09-22. If you need help checking exposure, call (864) 335-9223.

Actively exploited (KEV)

CVE-2026-75650

Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability

Adobe Commerce and Magento is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-75650). Adobe Commerce and Magento Open Source contain an improper neutralization of special elements used in a template engine vulnerability that could allow an attacker to execute arbitrary code. CISA remediation due date: 2026-09-11. If you need help checking exposure, call (864) 335-9223.