How severe is CVE-2022-36616?

CVE-2022-36616 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-36616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-36616?

CVE-2022-36616 affects Totolink A810r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-36616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-36616 published?

CVE-2022-36616 was published on 2022-08-29 and last updated on 2026-06-17.

CVE-2022-36616

CVE-2022-36616 is a high-severity vulnerability in Totolink A810r Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Totolink A810r Firmware
Published: 2022-08-29
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-36616?: 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.
How severe is CVE-2022-36616?: CVE-2022-36616 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-36616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-36616?: CVE-2022-36616 affects Totolink A810r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-36616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-36616 published?: CVE-2022-36616 was published on 2022-08-29 and last updated on 2026-06-17.

References

https://github.com/whiter6666/CVE/blob/main/TOTOLINK_A810R/hard_code.md

Affected products (1)

cpe:2.3:o:totolink:a810r_firmware:4.1.2cu.5182_b20201026:*:*:*:*:*:*:*

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