How severe is CVE-2022-46139?

CVE-2022-46139 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-46139 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46139?

CVE-2022-46139 affects Tp-link Tl-wr940n V4 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-46139?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-46139 published?

CVE-2022-46139 was published on 2022-12-20 and last updated on 2026-06-17.

CVE-2022-46139

CVE-2022-46139 is a medium-severity vulnerability in Tp-link Tl-wr940n V4 Firmware with a CVSS 3.x base score of 6.5. 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-345.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Tp-link Tl-wr940n V4 Firmware
Published: 2022-12-20
Last modified: 2026-06-17

Description

TP-Link TL-WR940N V4 3.16.9 and earlier allows authenticated attackers to cause a Denial of Service (DoS) via uploading a crafted firmware image during the firmware update process.

Frequently asked questions

What is CVE-2022-46139?: TP-Link TL-WR940N V4 3.16.9 and earlier allows authenticated attackers to cause a Denial of Service (DoS) via uploading a crafted firmware image during the firmware update process.
How severe is CVE-2022-46139?: CVE-2022-46139 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-46139 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46139?: CVE-2022-46139 affects Tp-link Tl-wr940n V4 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-46139?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-46139 published?: CVE-2022-46139 was published on 2022-12-20 and last updated on 2026-06-17.

References

https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/HJH7LSZPj

Affected products (1)

cpe:2.3:o:tp-link:tl-wr940n_v4_firmware:*:*:*:*:*:*:*:*

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