How severe is CVE-2022-46637?

CVE-2022-46637 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-46637 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46637?

CVE-2022-46637 affects Prolink2u Prs1841 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-46637?

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

When was CVE-2022-46637 published?

CVE-2022-46637 was published on 2023-02-21 and last updated on 2026-06-17.

CVE-2022-46637

CVE-2022-46637 is a critical-severity vulnerability in Prolink2u Prs1841 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Prolink2u Prs1841 Firmware
Published: 2023-02-21
Last modified: 2026-06-17

Description

Prolink router PRS1841 was discovered to contain hardcoded credentials for its Telnet and FTP services.

Frequently asked questions

What is CVE-2022-46637?: Prolink router PRS1841 was discovered to contain hardcoded credentials for its Telnet and FTP services.
How severe is CVE-2022-46637?: CVE-2022-46637 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-46637 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46637?: CVE-2022-46637 affects Prolink2u Prs1841 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-46637?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-46637 published?: CVE-2022-46637 was published on 2023-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:prolink2u:prs1841_firmware:u_v2:*:*:*:*:*:*:*

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