How severe is CVE-2019-19143?

CVE-2019-19143 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-19143 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19143?

CVE-2019-19143 affects Tp-link Tl-wr849n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19143?

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

When was CVE-2019-19143 published?

CVE-2019-19143 was published on 2020-01-27 and last updated on 2026-06-17.

CVE-2019-19143

CVE-2019-19143 is a medium-severity vulnerability in Tp-link Tl-wr849n Firmware with a CVSS 3.x base score of 6.1. 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.1
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Tp-link Tl-wr849n Firmware
Published: 2020-01-27
Last modified: 2026-06-17

Description

TP-LINK TL-WR849N 0.9.1 4.16 devices do not require authentication to replace the firmware via a POST request to the cgi/softup URI.

Frequently asked questions

What is CVE-2019-19143?: TP-LINK TL-WR849N 0.9.1 4.16 devices do not require authentication to replace the firmware via a POST request to the cgi/softup URI.
How severe is CVE-2019-19143?: CVE-2019-19143 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-19143 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19143?: CVE-2019-19143 affects Tp-link Tl-wr849n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19143?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19143 published?: CVE-2019-19143 was published on 2020-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:tl-wr849n_firmware:0.9.1_4.16:*:*:*:*:*:*:*

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