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CVE-2020-28347

80
FAUCET Score

CVE-2020-28347 is a critical remote code execution vulnerability affecting TP-Link Archer A7 AC1750 routers with firmware versions prior to 201029. This flaw, an incomplete fix for a previous vulnerability, allows unauthenticated remote attackers to execute arbitrary code by manipulating the slave_mac parameter in the tdpServer. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While not on the CISA KEV catalog or actively discussed on social media, a Metasploit module exists, indicating readily available exploit code.

Impacted Technologies

VendorProductVersion(s)CPE
< 201029CPE matchmatch criteria
cpe:2.3:o:tp-link:ac1750_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
73.85%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: TP-Link Archer A7/C7 Unauthenticated LAN Remote Code Execution · Mar 25, 2020
This CVE's current EPSS score of 0.7385 is in the 98th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2019/lao_bomb/lao_bomb.md
ExploitThird Party Advisory
github.com / pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/minesweeper.md
ExploitThird Party Advisory
github.com / rapid7/metasploit-framework/pull/14365
ExploitPatchThird Party Advisory
github.com / rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2019/lao_bomb.md
ExploitThird Party Advisory
github.com / rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2020/minesweeper.md
ExploitThird Party Advisory