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CVE-2020-28877

CRITICALCVSS 9.8/10EPSS 1.18%

Last modified

CVE-2020-28877 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.18%

63.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Tp-LinkWdr7400 FirmwareAll versions
Tp-LinkWdr7500 FirmwareAll versions
Tp-LinkWdr7660 FirmwareAll versions
Tp-LinkWdr7800 FirmwareAll versions
Tp-LinkWdr8400 FirmwareAll versions
Tp-LinkWdr8500 FirmwareAll versions
Tp-LinkWdr8600 FirmwareAll versions
Tp-LinkWdr8620 FirmwareAll versions
Tp-LinkWdr8640 FirmwareAll versions
Tp-LinkWdr8660 FirmwareAll versions
Tp-LinkWr880n FirmwareAll versions
Tp-LinkWr886n FirmwareAll versions
Tp-LinkWr890n FirmwareAll versions
Tp-LinkWr882n FirmwareAll versions
Tp-LinkWr708n FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-28877?
Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.
How severe is CVE-2020-28877?
CVE-2020-28877 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.
How do I fix CVE-2020-28877?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28877?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST