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Fencer Vulns
critical 9.8

CVE-2020-28347 in the critical feed json

tdpServer on TP-Link Archer A7 AC1750 devices before 201029 allows remote attackers to execute arbitrary code via the slave_mac parameter.

published 2020-11-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20809

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
75.0%
EPSS 75.0% chance of exploitation in 30 days, percentile 99.5%
public exploits
1
Metasploit

Summary

tdpServer on TP-Link Archer A7 AC1750 devices before 201029 allows remote attackers to execute arbitrary code via the slave_mac parameter. NOTE: this issue exists because of an incomplete fix for CVE-2020-10882 in which shell quotes are mishandled.

Patch / fix

  • tp-link ac1750_firmware 201029

Timeline

  1. First public exploit (Metasploit exploit/linux/misc/tplink_archer_a7_c7_lan_rce)
  2. Published

Exploit prediction

74.97% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/misc/tplink_archer_a7_c7_lan_rce TP-Link Archer A7/C7 Unauthenticated LAN Remote Code Execution metasploit exploit, excellent rank, 2020-03-25
  • github.com https://github.com/rapid7/metasploit-framework/pull/14365 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/minesweeper.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2020/minesweeper.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2019/lao_bomb/lao_bomb.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2019/lao_bomb.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.