How severe is CVE-2020-10887?

CVE-2020-10887 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-2020-10887 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-2020-10887?

CVE-2020-10887 affects Tp-link Ac1750 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10887?

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-2020-10887 published?

CVE-2020-10887 was published on 2020-03-25 and last updated on 2026-06-17.

CVE-2020-10887

CVE-2020-10887 is a critical-severity vulnerability in Tp-link Ac1750 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-693.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-693
Affected product: Tp-link Ac1750 Firmware
Published: 2020-03-25
Last modified: 2026-06-17

Description

This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9663.

Frequently asked questions

What is CVE-2020-10887?: This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9663.
How severe is CVE-2020-10887?: CVE-2020-10887 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-2020-10887 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-2020-10887?: CVE-2020-10887 affects Tp-link Ac1750 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10887?: 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-2020-10887 published?: CVE-2020-10887 was published on 2020-03-25 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-20-338/

Affected products (1)

cpe:2.3:o:tp-link:ac1750_firmware:190726:*:*:*:*:*:*:*

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