Vulnerability-Lookup

CVE-2026-8480 (GCVE-0-2026-8480)

Vulnerability from cvelistv5 – Published: 2026-07-01 14:52 – Updated: 2026-07-01 15:45

Title

Connection possible to the Administration portal with a revoked certificate

Summary

A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included) A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attacker who possesses the revoked certificate to gain administrative access.

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-01 15:44 UTC

CWE

CWE-295 - Improper certificate validation

Assigner

airbus CNA under the mitre root

CNA scorecard C 70/100 over 15 records in the last 180 days details

References

1 reference

URL	Tags
https://advisories.stormshield.eu/2026-002/

Impacted products

1 product

Vendor	Product	Version	CPE status
Stormshield	Stormshield Network Security	Affected: 4.3.0 , ≤ 4.3.41 (semver) Affected: 4.4.0 , ≤ 4.8.15 (semver) Affected: 5.0.2 EA , ≤ 5.0.5 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-8480

Vulnerability from fkie_nvd - Published: 2026-07-01 16:16 - Updated: 2026-10-25 17:10

Severity

4.3 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	cert@airbus.com	https://advisories.stormshield.eu/2026-002/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Stormshield Network Security",
          "vendor": "Stormshield",
          "versions": [
            {
              "lessThanOrEqual": "4.3.41",
              "status": "affected",
              "version": "4.3.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "4.8.15",
              "status": "affected",
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        }
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    }
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    }
  ],
  "id": "CVE-2026-8480",
  "lastModified": "2026-10-25T17:10:00.197",
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GHSA-2J5Q-9JW8-9QJ5

Vulnerability from github – Published: 2026-07-01 18:31 – Updated: 2026-07-01 18:31

Details

A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included)

A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attacker who possesses the revoked certificate to gain administrative access.

Severity

4.3 (Medium)


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

Show details on source website

JSON

To clipboard

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  "affected": [],
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  ],
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T16:16:53Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-2j5q-9jw8-9qj5",
  "modified": "2026-07-01T18:31:51Z",
  "published": "2026-07-01T18:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8480"
    },
    {
      "type": "WEB",
      "url": "https://advisories.stormshield.eu/2026-002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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

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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-2026-8480 (GCVE-0-2026-8480)

FKIE_CVE-2026-8480

GHSA-2J5Q-9JW8-9QJ5

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Related by attack behaviour