9.8

CVE-2022-40942: tenda tx3_firmware Out-of-bounds Write

CVSS: 9.8v3.1CriticalModified
Published 28-09-2022Last modified 21-05-2025
Open JSON

Vulnerability summary

CVE-2022-40942 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in tenda tx3_firmware. EPSS estimates a 8.51% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
8.51%
0%100%
Low · +0.36 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 28-09-2022
    PublishedVulnerability first disclosed.
  2. 21-05-2025
    Last modifiedVulnerability information updated.

Description

Tenda TX3 US_TX3V1.0br_V16.03.13.11 is vulnerable to stack overflow via compare_parentcontrol_time.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

8.51%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

+0.36 pp

From 8.15% on 21-09-2026

21-09-202621-10-2026
EPSS score
8.51%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Vulnerability

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Tenda1 product

1 vendor · 1 product

References

1 links