Vulnerability-Lookup

GHSA-M7V3-P7G2-XH6X

Vulnerability from github – Published: 2026-05-28 15:39 – Updated: 2026-05-28 15:39

Details

The Mennekes Amtron series (firmware versions ≤ 5.22.3) is vulnerable to an authentication bypass. An unauthenticated remote attacker can change the password of the user account via a crafted POST request to the /operator/operator endpoint.

Severity

9.3 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-8979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T14:16:24Z",
    "severity": "CRITICAL"
  },
  "details": "The Mennekes Amtron series (firmware versions \u2264 5.22.3) is vulnerable to an authentication bypass. An unauthenticated remote attacker can change the password of the user account via a crafted POST request to the /operator/operator endpoint.",
  "id": "GHSA-m7v3-p7g2-xh6x",
  "modified": "2026-05-28T15:39:50Z",
  "published": "2026-05-28T15:39:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8979"
    },
    {
      "type": "WEB",
      "url": "https://cyberdanube.com/security-research/multiple-vulnerabilities-in-mennekes-amtron-series"
    }
  ],
  "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:H/SC:H/SI:H/SA:H/E:P/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"
    }
  ]
}

CVE-2026-8979 (GCVE-0-2026-8979)

Vulnerability from cvelistv5 – Published: 2026-05-28 13:05 – Updated: 2026-05-28 14:21

Title

Authentication Bypass

Summary

Severity

9.3 (Critical)


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

CWE

CWE-287 - Improper Authentication

Assigner

CyberDanube

References

1 reference

URL	Tags
https://cyberdanube.com/security-research/multipl…

Impacted products

1 product

Vendor	Product	Version
Mennekes	Amtron	Affected: 0 , ≤ 5.22.3 (custom)

Credits

S. Eisenreich-Dietz (CyberDanube)

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JSON

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                  },
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                "timestamp": "2026-05-28T14:21:09.524366Z",
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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.

Action not permitted

GHSA-M7V3-P7G2-XH6X

CVE-2026-8979 (GCVE-0-2026-8979)

Tags

Sightings

Nomenclature