7.2

CVE-2022-29402: tp-link tl-wr840n_firmware

CVSS: 7.2v2.0HighModified
Published 25-05-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2022-29402 is a high (CVSS 7.2) vulnerability in tp-link tl-wr840n_firmware. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v2.0 (NVD)
EPSS score
0.43%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 25-05-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.01 pp

From 0.42% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (k4m1ll0.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Tp-link1 product

1 vendor · 1 product

References

1 links