⌁ DAY 41UNDERCOVERED IN US

CISA adds multiple critical vulnerabilities to known exploited catalog

Between September 8 and 11, 2026, the U.S. Cybersecurity and Infrastructure Security Agency added six critical vulnerabilities to its Known Exploited Vulnerabilities catalog, including flaws in Microsoft Windows, GitLab, JFrog Artifactory, and N-able N-central that allow remote code execution and privilege escalation. Active exploitation of these vulnerabilities has been documented.

18 reports · 15 independentprimary · other

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CVE-2026-81963: Microsoft Windows — Microsoft Windows Link Following Vulnerability

json:cisa-kevprimary21d ago kagi ↗

Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow appli

CVE-2026-86218: N-able N-central — N-able N-central Static Code Injection Vulnerability

json:cisa-kevprimary21d ago kagi ↗

N-able N-central contains a static code injection vulnerability that could allow for pre-authentication remote code execution. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 gu

CVE-2026-85880: Microsoft Windows — Microsoft Windows Heap-Based Buffer Overflow Vulnerability

json:cisa-kevprimary21d ago kagi ↗

Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Fo

🚨 [CISA-2026:0908] CISA Adds 4 Known Exploited Vulnerabilities to Catalog ( https:// secdb.nttzen.cloud/security-ad visory/detail/CISA-2026:0908 ) CISA has added 4 new vulnerabilities to its Known Ex

mastodon:infosec-exchangeother20d ago wire ×4 kagi ↗

🚨 [CISA-2026:0908] CISA Adds 4 Known Exploited Vulnerabilities to Catalog ( https:// secdb.nttzen.cloud/security-ad visory/detail/CISA-2026:0908 ) CISA has added 4 new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the feder

CVE-2026-19490: Citrix NetScaler — Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability

json:cisa-kevprimary20d ago kagi ↗

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. Action: Apply mitigations in accordance with vendor instructions, e

CVE-2025-25249: Fortinet Multiple Products — Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability

json:cisa-kevprimary20d ago kagi ↗

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. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics

CVE-2026-87491: Google Chromium V8 — Google Chromium V8 Out of Bounds Write Vulnerability

json:cisa-kevprimary20d ago kagi ↗

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. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance

CVE-2026-20079: Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management — Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability

json:cisa-kevprimary20d ago kagi ↗

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. Action: Apply mitigat

CVE-2026-86060: MikroTik RouterOS — MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability

json:cisa-kevprimary19d ago kagi ↗

MikroTik RouterOS contains an improper neutralization of argument delimiters in a command vulnerability which allows an attacked to change the trusted RouterOS policy mask, leading to privilege escalation. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Fo

CVE-2026-67277: MikroTik RouterOS — MikroTik RouterOS Missing Authentication for Critical Function Vulnerability

json:cisa-kevprimary19d ago kagi ↗

MikroTik RouterOS contains a missing authenticaion for critical function vulnerability which allows kernel memory disclosure and denial of service in the btest service. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL

CVE-2026-84869: ConnectWise ScreenConnect — ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

json:cisa-kevprimary18d ago kagi ↗

ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to file transfer and execution through an active remote sessions without authorization or host confirmation. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk

CVE-2026-42016: JFrog Artifactory — JFrog Artifactory Incorrect Authorization Vulnerability

json:cisa-kevprimary18d ago kagi ↗

JFrog Artifactory contains an incorrect authorization vulnerability that allows leads to privilege escalation attack due to a validation check of the token signature/issuer and not the token’s scope. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensic

CVE-2026-42018: JFrog Artifactory — JFrog Artifactory Improper Authentication Vulnerability

json:cisa-kevprimary18d ago kagi ↗

JFrog Artifactory contains an improper authentication vulnerability that could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guid

CVE-2026-85706: GitLab Community Edition and Enterprise Edition — GitLab Community Edition and Enterprise Edition Path Traversal Vulnerability

json:cisa-kevprimary18d ago kagi ↗

GitLab Community Edition and Enterprise Edition contains a path traversal vulnerability that allows an unauthenticated user to read arbitrary files due to an improper path confinement and missing authentication enforcement in the repository commits API. Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on

CISA Adds One Known Exploited Vulnerability to Catalog

rss:cisa-advisoriesprimary18d ago kagi ↗

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 2