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Vulnerability record · CVE-2022-36616 · published 29 August 2022

CVE-2022-36616: Totolink a810r firmware hard-coded credentials vulnerability

TTotolink · A810r Firmware

TOTOLINK A810R V4.1.2cu.5182_B20201026 and V5.9c.4050_B20190424 was discovered to contain a hardcoded password for root at /etc/shadow.sample.

7.8 CVSS 3.1 High EPSS 0.30% · top 79.6% CWE-798 · Hard-coded credentials
7.8CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

TOTOLINK A810R V4.1.2cu.5182_B20201026 and V5.9c.4050_B20190424 was discovered to contain a hardcoded password for root at /etc/shadow.sample.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/whiter6666/CVE/blob/main/TOTOLINK_A810R/hard_code.md ExploitThird Party Advisory
https://github.com/whiter6666/CVE/blob/main/TOTOLINK_A810R/hard_code.md ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-28035Totolink a830r firmware os command injection vulnerabilityTOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through th…EPSS 1.3%9.8CVE-2025-28036Totolink a950rg firmware os command injection vulnerabilityTOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through t…EPSS 1.3%9.8CVE-2025-28037Totolink a810r firmware os command injection vulnerabilityTOTOLINK A810R V4.1.2cu.5182_B20201026 and A950RG V4.1.2cu.5161_B20200903 were found to contain a pre-auth remote command execution vulnerability in …EPSS 1.2%9.8CVE-2025-28024Totolink a810r firmware classic buffer overflow vulnerabilityTOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in the cstecgi.cgiEPSS 0.56%9.8CVE-2025-28034Totolink a800r firmware os command injection vulnerabilityTOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5…EPSS 1.3%9.8CVE-2025-28137Totolink a810r firmware os command injection vulnerabilityThe TOTOLINK A810R V4.1.2cu.5182_B20201026 were found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function throu…EPSS 34%9.8CVE-2022-26212Totolink a830r firmware os command injection vulnerabilityTotolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137_B20200730, A3000RU V5.9c.518…EPSS 2.8%9.8CVE-2022-26210Totolink a830r firmware os command injection vulnerabilityTotolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137_B20200730, A3000RU V5.9c.518…EPSS 5.7%

Source: NIST National Vulnerability Database (record CVE-2022-36616), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.