7.5

CVE-2021-21817: dlink dir-3040_firmware

CVSS: 7.5v3.0HighModified
Published 16-07-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21817 is a high (CVSS 7.5) vulnerability in dlink dir-3040_firmware. EPSS estimates a 2.01% chance of exploitation in the next 30 days, higher than 80.5% 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 · v3.0 (CVE.org)
EPSS score
2.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 16-07-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

An information disclosure vulnerability exists in the Zebra IP Routing Manager functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send a sequence of requests to trigger this vulnerability.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

2.01%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.01% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (talosintelligence.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Dlink1 product

1 vendor · 1 product

References

1 links