Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since August 4, 2026.
CVE-2026-18556
N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
Added to KEV August 4, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-18556
- CWE
- CWE-288
- Affected products
- N-central · N-able N-central · N-able
What happened
N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.
What it means for your business
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.
Required 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 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA due date: August 7, 2026
Sources
Related briefs
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.
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.
N-able N-Central Command Injection Vulnerability
N-able N-Central is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-8876). N-able N-Central contains a command injection vulnerability via improper sanitization of user input. CISA remediation due date: 2025-08-20. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
N-able N-Central Insecure Deserialization Vulnerability
N-able N-Central is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-8875). N-able N-Central contains an insecure deserialization vulnerability that could lead to command execution. CISA remediation due date: 2025-08-20. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
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