What is CVE-2022-37841?

CVE-2022-37841 is a high-severity vulnerability in Totolink A860r, classified under Use of Hard-coded Credentials. CVSS score: 7.5/10. Published 2022-09-06.

How severe is CVE-2022-37841?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-37841 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Totolink A860r

CVE-2022-37841

In TOTOLINK A860R V4.1.2cu.5182_B20201027 there is a hard coded password for root in /etc/shadow.sample.

Published 2022-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Totolink A860r
Totolink A860r Firmware — versions 4.1.2cu.5182_b20201027

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

Public proof-of-concept exploits

References

github.com/1759134370/iot/blob/main/TOTOLINK/A860R/2.md (Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2022-37841?: CVE-2022-37841 is a high-severity vulnerability in Totolink A860r, classified under Use of Hard-coded Credentials. CVSS score: 7.5/10. Published 2022-09-06.
How severe is CVE-2022-37841?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-37841 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.