CVE-2022-34747

A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml	Patch Vendor Advisory
https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*

History

21 Nov 2024, 07:10

Type	Values Removed	Values Added
References	~~() https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml - Patch, Vendor Advisory~~	() https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml - Patch, Vendor Advisory

Information

Published : 2022-09-06 02:15

Updated : 2024-11-21 07:10

NVD link : CVE-2022-34747

Mitre link : CVE-2022-34747

CVE.ORG link : CVE-2022-34747

JSON object : View

Products Affected

zyxel

nas326
nas326_firmware

CWE

CWE-134

Use of Externally-Controlled Format String

{"id": "CVE-2022-34747", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@zyxel.com.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-09-06T02:15:07.517", "references": [{"url": "https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml", "tags": ["Patch", "Vendor Advisory"], "source": "security@zyxel.com.tw"}, {"url": "https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-134"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-134"}]}], "descriptions": [{"lang": "en", "value": "A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet."}, {"lang": "es", "value": "Una vulnerabilidad de cadena de formato en Zyxel NAS326 versiones de firmware anteriores a V5.21(AAZF.12)C0, podr\u00eda permitir a un atacante lograr una ejecuci\u00f3n remota no autorizada de c\u00f3digo por medio de un paquete UDP dise\u00f1ado.\n"}], "lastModified": "2024-11-21T07:10:06.647", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2859006C-00D3-4CF0-B9EF-4CEDD737CF98", "versionEndExcluding": "5.21\\(aazf.12\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E0A01B19-4A91-4FBC-8447-2E854346DAC5"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@zyxel.com.tw"}