[NEU] [mittel] N-able N-Central: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen

mediumCVE-2026-18577 CVE-2026-18556

Ein Angreifer kann mehrere Schwachstellen in N-able N-Central ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-03
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2621

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-185771.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 71% of all scored CVEs.
Low exploitation riskCVE-2026-185560.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-18577	coverage & exploitation status	NVD · CVE.org
CVE-2026-18556	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedNCSC-2026-0275 [1.00] [M/H] Kwetsbaarheden verholpen in N-able N-centralncsc-nl
criticalexploitedCVE-2026-18577: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerabilitycisa-kev
unknownexploitedCVE-2026-18577: An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover i…nvd
unknownCVE-2026-18556: Authentication bypass using an alternate path or channel vulnerability in N-able N-central all…nvd

Recent advisories for N-able N-Central

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownexploitedNCSC-2026-0275 [1.00] [M/H] Kwetsbaarheden verholpen in N-able N-centralncsc-nl · 2026-08-03
criticalexploitedCVE-2026-18577: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerabilitycisa-kev · 2026-08-03
unknownCVE-2026-18556: Authentication bypass using an alternate path or channel vulnerability in N-able N-central all…nvd · 2026-08-01
criticalexploitedCVE-2025-8875: N-able N-Central Insecure Deserialization Vulnerabilitycisa-kev · 2025-08-13
criticalexploitedCVE-2025-8876: N-able N-Central Command Injection Vulnerabilitycisa-kev · 2025-08-13