7.5

CVE-2022-40874: tenda ax1803_firmware Out-of-bounds Write

CVSS: 7.5v3.1HighModified
Published 27-10-2022Last modified 07-05-2025
Open JSON

Vulnerability summary

CVE-2022-40874 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in tenda ax1803_firmware. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.88%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 27-10-2022
    PublishedVulnerability first disclosed.
  2. 07-05-2025
    Last modifiedVulnerability information updated.

Description

Tenda AX1803 v1.0.0.1 was discovered to contain a heap overflow vulnerability in the GetParentControlInfo function, which can cause a denial of service attack through a carefully constructed http request.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.88%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

+0.02 pp

From 0.86% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.88%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (cnblogs.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Tenda1 product

1 vendor · 1 product

References

1 links