Vulnerability-Lookup

CVE-2026-6265 (GCVE-0-2026-6265)

Vulnerability from cvelistv5 – Published: 2026-04-27 13:00 – Updated: 2026-04-27 13:58

Title

Local Privilege Escalation in Cerberus FTP Server =< 2025.4.2

Summary

Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1

Severity

7.3 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-27 13:58 UTC

CWE

CWE-278 - Insecure preserved inherited permissions

Assigner

NCSC-FI ENISA root

References

2 references

URL	Tags
https://www.cerberusftp.com/releasenotes/	release-notes
https://labs.reversec.com/advisories/2026/04/cerb…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Cerberus	Cerberus FTP Server	Affected: 0 , ≤ 2025.4.2 (custom) Unaffected: 2026.1	guessed

Date Public

2026-04-27 11:00

Credits

Sharan Patil with Reversec

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-6265

Vulnerability from fkie_nvd - Published: 2026-04-27 14:16 - Updated: 2026-06-17 11:00

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1

References

URL	Tags
db4dfee8-a97e-4877-bfae-eba6d14a2166	https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges	Exploit, Vendor Advisory
db4dfee8-a97e-4877-bfae-eba6d14a2166	https://www.cerberusftp.com/releasenotes/	Release Notes
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	cerberusftp	ftp_server	*

JSON

To clipboard

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          "defaultStatus": "unaffected",
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        "Vendor Advisory"
      ],
      "url": "https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges"
    }
  ],
  "sourceIdentifier": "db4dfee8-a97e-4877-bfae-eba6d14a2166",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-278"
        }
      ],
      "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166",
      "type": "Secondary"
    }
  ]
}

GHSA-55JC-JJ35-FW6C

Vulnerability from github – Published: 2026-04-27 15:30 – Updated: 2026-05-07 03:31

Details

Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.3 (High)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-6265"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-278"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-27T14:16:51Z",
    "severity": "HIGH"
  },
  "details": "Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1",
  "id": "GHSA-55jc-jj35-fw6c",
  "modified": "2026-05-07T03:31:19Z",
  "published": "2026-04-27T15:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6265"
    },
    {
      "type": "WEB",
      "url": "https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges"
    },
    {
      "type": "WEB",
      "url": "https://www.cerberusftp.com/releasenotes"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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-2026-6265 (GCVE-0-2026-6265)

FKIE_CVE-2026-6265

GHSA-55JC-JJ35-FW6C

Tags

Sightings

Nomenclature

Related by attack behaviour