github - ghsa-r99r-5wp8-8w99

GHSA-R99R-5WP8-8W99

Vulnerability from github – Published: 2025-11-18 03:31 – Updated: 2025-11-18 03:31

Details

An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an attacker to perform Slowloris‑style denial‑of‑service (DoS) attacks. Such attacks may temporarily block legitimate HTTP requests and partially disrupt access to the web management interface, while other networking services remain unaffected.

Severity ?

5.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-6599"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-18T02:15:45Z",
    "severity": "MODERATE"
  },
  "details": "An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an attacker to perform Slowloris\u2011style denial\u2011of\u2011service (DoS) attacks. Such attacks may temporarily block legitimate HTTP requests and partially disrupt access to the web management interface, while other networking services remain unaffected.",
  "id": "GHSA-r99r-5wp8-8w99",
  "modified": "2025-11-18T03:31:14Z",
  "published": "2025-11-18T03:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6599"
    },
    {
      "type": "WEB",
      "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-uncontrolled-resource-consumption-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-11-18-2025"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-6599 (GCVE-0-2025-6599)

Vulnerability from cvelistv5 – Published: 2025-11-18 01:19 – Updated: 2025-11-18 16:35

Summary

Severity ?

5.3 (Medium)


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

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Zyxel

References

URL

Tags

https://www.zyxel.com/global/en/support/security-…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Zyxel	DX3301-T0 firmware	Affected: <= 5.50(ABVY.6.3)C0

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        "metrics": [
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                "id": "CVE-2025-6599",
                "options": [
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                  },
                  {
                    "Automatable": "yes"
                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-18T14:25:06.732705Z",
                "version": "2.0.3"
              },
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          "vendor": "Zyxel",
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            "confidentialityImpact": "NONE",
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  },
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Sightings

Author	Source	Type	Date

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-R99R-5WP8-8W99

CVE-2025-6599 (GCVE-0-2025-6599)

Tags

Sightings

Nomenclature