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A3002ru Firmware CVE-2022-35491

CRITICAL
Use of Hard-coded Credentials (CWE-798)
2022-08-10 cve@mitre.org
Authentication Bypass A3002ru Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Aug 10, 2022 - 20:15 nvd
CRITICAL 9.8

DescriptionNVD

TOTOLINK A3002RU V3.0.0-B20220304.1804 has a hardcoded password for root in /etc/shadow.sample.

AnalysisAI

TOTOLINK A3002RU V3.0.0-B20220304.1804 has a hardcoded password for root in /etc/shadow.sample. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. TOTOLINK A3002RU V3.0.0-B20220304.1804 has a hardcoded password for root in /etc/shadow.sample. Affected products include: Totolink A3002Ru Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.

More in A3002ru Firmware

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9.8 Aug 28

TOTOLINK AC1200 Wireless Router A3002RU V2.1.1-B20230720.1011 is vulnerable to Buffer Overflow. Rated critical severity

CVE-2018-13316 CRITICAL POC
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System command injection in formAliasIp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands vi
CVE-2018-13314 CRITICAL POC
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System command injection in formAliasIp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands vi
CVE-2018-13307 CRITICAL POC
9.8 Nov 27

System command injection in fromNtp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via th
CVE-2018-13306 CRITICAL POC
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System command injection in formDlna in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via t
CVE-2018-13315 CRITICAL POC
9.8 Nov 26

Incorrect access control in formPasswordSetup in TOTOLINK A3002RU version 1.0.8 allows attackers to change the admin use
CVE-2025-6393 HIGH POC
8.8 Jun 21

CVE-2025-6393 is a critical buffer overflow vulnerability in the HTTP POST request handler of TOTOLINK routers affecting
CVE-2025-6163 HIGH POC
8.8 Jun 17

Critical buffer overflow vulnerability in TOTOLINK A3002RU routers (version 3.0.0-B20230809.1615 and potentially others)
CVE-2025-6148 HIGH POC
8.8 Jun 17

Critical remote buffer overflow vulnerability in TOTOLINK A3002RU firmware version 3.0.0-B20230809.1615 affecting the HT
CVE-2025-6337 HIGH POC
8.8 Jun 20

CVE-2025-6337 is a critical buffer overflow vulnerability in TOTOLINK A3002R and A3002RU routers affecting versions 3.0.
CVE-2025-6953 HIGH POC
8.8 Jul 01

A vulnerability, which was classified as critical, was found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an un
CVE-2026-26736 HIGH POC
8.8 Feb 17

Stack-based buffer overflow in TOTOLIK A3002RU firmware versions up to V3.0.0-B20220304.1804 allows authenticated attack

Same weakness CWE-798 – Use of Hard-coded Credentials

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Same technique Authentication Bypass

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CVE-2012-1723 CRITICAL POC
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CVE-2017-10271 HIGH POC
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CVE-2015-1427 CRITICAL POC
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CVE-2025-3248 CRITICAL POC
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CVE-2022-35491 vulnerability details – vuln.today
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