CVE-2026-18577
HighPublished
Incomplete patch leads to administrative account takeover
- Published
- Aug 2, 2026
- Updated
- Aug 4, 2026
- Assigning CNA
- N-able
- Evidence observed
- Aug 3, 2026
Primary CVSS
8.2/ 10High
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X14.6%
Moderate · next 30 days
- Percentile
- 96.6%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
Sources
Repository evidence: Files: 1 · Repositories: 1
1 Template
http/cves/2026/CVE-2026-18577.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl,word($.matchers[*].type)
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