How severe is CVE-2022-36612?

CVE-2022-36612 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-2022-36612 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-2022-36612?

CVE-2022-36612 affects Totolink A950rg Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-36612?

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-2022-36612 published?

CVE-2022-36612 was published on 2022-08-29 and last updated on 2026-06-17.

CVE-2022-36612

CVE-2022-36612 is a high-severity vulnerability in Totolink A950rg 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 A950rg Firmware
Published: 2022-08-29
Last modified: 2026-06-17

Description

TOTOLINK A950RG V4.1.2cu.5204_B20210112 was discovered to contain a hardcoded password for root at /etc/shadow.sample.

Frequently asked questions

What is CVE-2022-36612?: TOTOLINK A950RG V4.1.2cu.5204_B20210112 was discovered to contain a hardcoded password for root at /etc/shadow.sample.
How severe is CVE-2022-36612?: CVE-2022-36612 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-2022-36612 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-2022-36612?: CVE-2022-36612 affects Totolink A950rg Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-36612?: 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-2022-36612 published?: CVE-2022-36612 was published on 2022-08-29 and last updated on 2026-06-17.

References

https://github.com/whiter6666/CVE/blob/main/TOTOLINK_A950RG/hard_code.md

Affected products (1)

cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5204_b20210112:*:*:*:*:*:*:*

More vulnerabilities in Totolink A950rg Firmware

CVE-2025-67188 — Critical (CVSS 9.8): A buffer overflow vulnerability exists in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The issue resides in the setRadvdCfg…
CVE-2025-67187 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability was identified in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The flaw exists…
CVE-2025-67186 — Critical (CVSS 9.8): TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability in the setUrlFilterRules interface of…
CVE-2025-44655 — Critical (CVSS 9.8): In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This…
CVE-2025-45798 — Critical (CVSS 9.8): A command execution vulnerability exists in the TOTOLINK A950RG V4.1.2cu.5204_B20210112. The vulnerability is located…
CVE-2025-45797 — Critical (CVSS 9.8): TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. The vulnerability arises from the…

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