Vulnerability-Lookup

CVE-2026-49191 (GCVE-0-2026-49191)

Vulnerability from cvelistv5 – Published: 2026-06-04 05:36 – Updated: 2026-06-04 12:40

Title

Exposed Hard-coded M3WebServer Backend API Key

Summary

The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-04 12:40 UTC

CWE

CWE-287 - Improper Authentication

Assigner

Acer mitre root

References

1 reference

URL	Tags
https://community.acer.com/en/kb/articles/19707

Impacted products

1 product

Vendor	Product	Version	CPE status
Acer	Connect M6E 5G Portable WiFi Router	Affected: * , ≤ M6E_AI_1.00.000019 (custom)	guessed

Credits

Ta-Lun Yen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-49191

Vulnerability from fkie_nvd - Published: 2026-06-04 07:16 - Updated: 2026-07-22 20:10

Severity

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

Summary

The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.

References

	URL	Tags
	8fc372e3-d9c5-46e4-9410-38469745c639	https://community.acer.com/en/kb/articles/19707	Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	acer	connect_m6e_5g_firmware	*
	acer	connect_m6e_5g	-

JSON

To clipboard

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          "product": "Connect M6E 5G Portable WiFi Router",
          "vendor": "Acer",
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GHSA-GPG2-45RX-77FF

Vulnerability from github – Published: 2026-06-04 09:30 – Updated: 2026-06-04 21:31

Details

The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.

Severity

9.8 (Critical)


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

9.3 (Critical)


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

Show details on source website

JSON

To clipboard

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  ],
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-04T07:16:27Z",
    "severity": "CRITICAL"
  },
  "details": "The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.",
  "id": "GHSA-gpg2-45rx-77ff",
  "modified": "2026-06-04T21:31:20Z",
  "published": "2026-06-04T09:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49191"
    },
    {
      "type": "WEB",
      "url": "https://community.acer.com/en/kb/articles/19707"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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"
    }
  ]
}

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-2026-49191 (GCVE-0-2026-49191)

FKIE_CVE-2026-49191

GHSA-GPG2-45RX-77FF

Tags

Sightings

Nomenclature

Related by attack behaviour