7.8

CVE-2021-45994: tendacn g1_firmware Out-of-bounds Write

CVSS: 7.8v2.0HighModified
Published 04-02-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-45994 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in tendacn g1_firmware. EPSS estimates a 1.05% chance of exploitation in the next 30 days, higher than 64% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
1.05%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-02-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.05%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

0.00 pp

From 1.05% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.05%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Tendacn2 products

1 vendor · 2 products

References

2 links