CVE-2026-18556
High PUBLISHEDUnauthenticated administrative account takeover
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass. This issue affects N-central: through 2026.1.
- CVE Published
- Aug 01, 2026
- Exploitation Reported
- Aug 01, 2026
- CVSS
- 8.2 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| N-able |
N-central
|
0 to <= 2026.1 |
Affected |
CVE References
- uptime.n-able.com uptime.n-able.com · CVE Record https://uptime.n-able.com/
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| KEVIntel First | 2026-08-01 13:51 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Exploitation Status
Exploited in the wild
Recorded 2026-08-01 13:51:00 UTC · KEVIntel
Weaknesses (CWE)
-
Authentication Bypass Using an Alternate Path or Channel
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
19:59 UTC 1 day ago19:59 UTC · 1 day ago
CVE published
Vulnerability disclosed publicly
-
13:51 UTC 1 day ago13:51 UTC · 1 day ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
11:54 UTC 1 day ago11:54 UTC · 1 day ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2026-18556
{
"cve_id": "CVE-2026-18556",
"title": "Unauthenticated administrative account takeover",
"affected_vendor": "N-able",
"affected_product": "N-central",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 8.2,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}