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Emerging threatsHigh

CVE-2020-10884Archer A7 Hardcoded Credentials

This vulnerability allows network-adjacent attackers execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers.

Published Mar 25, 2020 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2020-10884 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Ac1750 Firmware (Tp-Link), Archer A7.
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 22% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

22%

Higher than 97.6% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

52/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

3

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Advisories And Exploit References

Description

This vulnerability allows network-adjacent attackers execute arbitrary code 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 tdpServer service, which listens on UDP port 20002 by default.

This issue results from the use of hard-coded encryption key. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9652.

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
Ac1750 FirmwareTp-Link190726n/a
Archer A7>= Firmware Ver: 190726n/a

Timeline

  1. Publicly disclosed

    Mar 25, 2020

  2. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-321 Use of Hard-coded Cryptographic Key
  • CWE-798 Use of Hard-coded Credentials

FAQ

Common Questions.

Is CVE-2020-10884 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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