FKIE_CVE-2023-28771

Vulnerability from fkie_nvd - Published: 2023-04-25 02:15 - Updated: 2025-10-27 17:05
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device.
References
security@zyxel.com.twhttp://packetstormsecurity.com/files/172820/Zyxel-IKE-Packet-Decoder-Unauthenticated-Remote-Code-Execution.htmlExploit, Third Party Advisory
security@zyxel.com.twhttps://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewallsVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/172820/Zyxel-IKE-Packet-Decoder-Unauthenticated-Remote-Code-Execution.htmlExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewallsVendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28771US Government Resource
Impacted products
Vendor Product Version
zyxel atp100_firmware *
zyxel atp100 -
zyxel atp100w_firmware *
zyxel atp100w -
zyxel atp200_firmware *
zyxel atp200 -
zyxel atp500_firmware *
zyxel atp500 -
zyxel atp700_firmware *
zyxel atp700 -
zyxel atp800_firmware *
zyxel atp800 -
zyxel usg_flex_100_firmware *
zyxel usg_flex_100 -
zyxel usg_flex_100w_firmware *
zyxel usg_flex_100w -
zyxel usg_flex_200_firmware *
zyxel usg_flex_200 -
zyxel usg_flex_50_firmware *
zyxel usg_flex_50 -
zyxel usg_flex_500_firmware *
zyxel usg_flex_500 -
zyxel usg_flex_50w_firmware *
zyxel usg_flex_50w -
zyxel usg_flex_700_firmware *
zyxel usg_flex_700 -
zyxel vpn100_firmware *
zyxel vpn100 -
zyxel vpn1000_firmware *
zyxel vpn1000 -
zyxel vpn300_firmware *
zyxel vpn300 -
zyxel vpn50_firmware *
zyxel vpn50 -
zyxel zywall_usg_310_firmware *
zyxel zywall_usg_310_firmware 4.73
zyxel zywall_usg_310 -
zyxel zywall_usg_100_firmware *
zyxel zywall_usg_100_firmware 4.73
zyxel zywall_usg_100 -
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device."
    }
  ],
  "id": "CVE-2023-28771",
  "lastModified": "2025-10-27T17:05:01.153",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "source": "security@zyxel.com.tw",
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        "exploitabilityScore": 3.9,
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        "source": "nvd@nist.gov",
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  },
  "published": "2023-04-25T02:15:08.743",
  "references": [
    {
      "source": "security@zyxel.com.tw",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://packetstormsecurity.com/files/172820/Zyxel-IKE-Packet-Decoder-Unauthenticated-Remote-Code-Execution.html"
    },
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      "source": "security@zyxel.com.tw",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewalls"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://packetstormsecurity.com/files/172820/Zyxel-IKE-Packet-Decoder-Unauthenticated-Remote-Code-Execution.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewalls"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28771"
    }
  ],
  "sourceIdentifier": "security@zyxel.com.tw",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "security@zyxel.com.tw",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




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.