Applications
CVE-2026-125883
XXE in N-able N-central allows XML schema poisoning leading to RCE/data theft
Major vulnerability. N-able N-central is an RMM used by MSPs and enterprises; exploitation can compromise managed networks and many customers, causing broad disruption.
- CVSS
- 9.3Criticalscored by the publisher (CNA)
- Exploited in the wild
- Not knownpublic proof of concept per CISA SSVC; not in CISA KEV
- EPSS
- No score yet
- Fix
- Patch availablesee the advisories in the references
- Published
- 10 Nov 2026analysed here 12 Nov 2026
Summary
Impact
Attackers can trigger XML External Entity processing to achieve remote code execution, SSRF and local file disclosure on N-central servers.
Triage
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
| Product | Affected versions | Vendor says fixed in |
|---|---|---|
| N-able N-central | < 26.4.1Vendor says fixed in: not stated |
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
Products named in our analysis
- N-able N-central < 26.4.1
Fix and mitigation
Action required
Immediate action required
WAF and other mitigations
Can a WAF block it? Partly. XXE needs a DOCTYPE in the XML body. WAF rules block that pattern, but XML wrapped in JSON, SOAP or file uploads can get past them.
Also consider: disable DTDs in parser
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Not listed as of our last sync.
- Public exploit code
- None on record in Exploit-DB, Metasploit, Nuclei templates or PoC-in-GitHub.
- CISA SSVC
- exploitation poc, automatable yes, technical impact totalAssessed by CISA 11 Nov 2026 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
Timeline
- 10 Nov 2026Published
- 11 Nov 2026CISA SSVC assessment: exploitation pocsame day later
- 12 Nov 2026CVE record last updated1 day later
- 12 Nov 2026Analysed by vulneraibility.comsame day later
Common questions
Is CVE-2026-125883 being exploited?
Not confirmed. CVE-2026-125883 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-125883?
CVE-2026-125883 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-125883?
Yes. A fix has been recorded for CVE-2026-125883. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-125883 affect?
CVE-2026-125883 affects N-able N-central < 26.4.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-125883?
Upgrade to 26.4.1+ and disable XML external entity processing; audit MSP access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
2 references in the CVE record, grouped by the tags the record gives them.
Advisories (1)
- me.n-able.com /s/security-advisory/aArVy0000002ihhKAA/cve2026125883-multiple-xxe-vulnerabiliti
Exploits (1)
- github.com /Oracle-Security/CVEs/tree/main/0-Days/N-Central%20N-Able#anonymous-service-impo
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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