8.8

CVE-2022-43620: d-link dir-1935 Improper Authentication

CVSS: 8.8v3.0HighModified
Published 29-03-2023Last modified 14-02-2025
Open JSON

Vulnerability summary

CVE-2022-43620 is a high (CVSS 8.8) Improper Authentication vulnerability in d-link dir-1935. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.0 (CVE.org)
EPSS score
1.04%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-03-2023
    PublishedVulnerability first disclosed.
  2. 14-02-2025
    Last modifiedVulnerability information updated.

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-16142.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.04%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

-0.01 pp

From 1.05% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.04%

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

D-link1 product
Dlink1 product

2 vendors · 2 products

References

2 links