Vulnerability-Lookup

CVE-2026-125883 (GCVE-0-2026-125883)

Vulnerability from cvelistv5 – Published: 2026-11-10 21:19 – Updated: 2026-11-12 04:56

Previdian

Title

Multiple XXE Vulnerabilities

Summary

Improper restriction of XML external entity reference vulnerability in N-able N-central allows XML Schema Poisoning. This issue affects N-central: before 26.4.1.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-11 00:00 UTC

CWE

CWE-611 - Improper restriction of XML external entity reference

Assigner

N-able CNA under the mitre root

CNA scorecard B 80/100 over 14 records in the last 180 days details

References

2 references

URL	Tags
https://me.n-able.com/s/security-advisory/aArVy00…	vendor-advisory
https://github.com/Oracle-Security/CVEs/tree/main…	exploit

Impacted products

1 product

Vendor	Product	Version	CPE status
N-able	N-central	Affected: 0 , < 26.4.1 (custom)	guessed

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 905c3a01-662b-4b75-ab2e-ae651388b8e1

Vulnerability ID: CVE-2026-125883

Status: Confirmed

Status Updated: 2026-11-10 10:56 UTC

Exploited: Yes

Timestamps

First Seen: 2026-11-10

Asserted: 2026-11-10

Scope

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	Multiple XXE Vulnerabilities
Cve Id	CVE-2026-125883
Vendor	N-able
Ghsa Id	None
Product	N-central
Added Date	2026-11-10T10:56:43.974Z
Cvss Score	9.3
Epss Score	None
Previous Ids	VULN-2026-0007
Cvss Severity	CRITICAL
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	None
Used In Malware	unknown
Vulnerability Id	CVE-2026-125883
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-11-11 11:00 UTC | Updated: 2026-11-11 11:00 UTC

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-125883

Vulnerability from fkie_nvd - Published: 2026-11-10 22:18 - Updated: 2026-11-12 22:09

Previdian

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Summary

Improper restriction of XML external entity reference vulnerability in N-able N-central allows XML Schema Poisoning. This issue affects N-central: before 26.4.1.

References

	URL	Tags
	a5532a13-c4dd-4202-bef1-e0b8f2f8d12b	https://me.n-able.com/s/security-advisory/aArVy0000002ihhKAA/cve2026125883-multiple-xxe-vulnerabilities
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/Oracle-Security/CVEs/tree/main/0-Days/N-Central%20N-Able#anonymous-service-import-xxe-rce

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-4PWJ-R4P2-8GQV

Vulnerability from github – Published: 2026-11-11 00:32 – Updated: 2026-11-11 15:30

Details

Improper restriction of XML external entity reference vulnerability in N-able N-central allows XML Schema Poisoning.

This issue affects N-central: before 26.4.1.

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-125883"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-10T22:18:31Z",
    "severity": "CRITICAL"
  },
  "details": "Improper restriction of XML external entity reference vulnerability in N-able N-central allows XML Schema Poisoning.\n\nThis issue affects N-central: before 26.4.1.",
  "id": "GHSA-4pwj-r4p2-8gqv",
  "modified": "2026-11-11T15:30:54Z",
  "published": "2026-11-11T00:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125883"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Oracle-Security/CVEs/tree/main/0-Days/N-Central%20N-Able#anonymous-service-import-xxe-rce"
    },
    {
      "type": "WEB",
      "url": "https://me.n-able.com/s/security-advisory/aArVy0000002ihhKAA/cve2026125883-multiple-xxe-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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:X",
      "type": "CVSS_V4"
    }
  ]
}

NCSC-2026-0478

Vulnerability from csaf_ncscnl - Published: 2026-11-11 08:12 - Updated: 2026-11-11 08:12

Summary

Kwetsbaarheden verholpen in N-able N-central

Scope

7 vulnerabilities in this advisory, including CVE-2026-125883.

CVE-2026-125883

N-able N-central versions prior to 26.4.1 contain a vulnerability involving improper restriction of XML external entity references, resulting in XML Schema Poisoning.

Known affected: 1 product

Open the full advisory

WID-SEC-W-2026-4440

Vulnerability from csaf_certbund - Published: 2026-11-09 23:00 - Updated: 2026-11-10 23:00

Summary

N-able N-Central: Mehrere Schwachstellen

Severity

Hoch

Scope

8 vulnerabilities in this advisory, including CVE-2026-125883.

CVE-2026-125883

Known affected: 8 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-125883 (GCVE-0-2026-125883)

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: previdian

Details

References

FKIE_CVE-2026-125883

GHSA-4PWJ-R4P2-8GQV

NCSC-2026-0478

WID-SEC-W-2026-4440

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour