CVE-2023-5074Public exploitNetwork attack vector

Authentication bypass via static JWT signing key

Published Sep 20, 2023 · Updated Sep 24, 2024

Authentication bypass in D-Link D-View 8 2.0.1.28 allows remote attackers to access protected APIs with a forged JWT. TokenUtils verifies every token with the embedded HMAC key D-Link, while WebApiRealm skips API-key validation when the account has no configured key. The default administrator has no API key and a stable user identifier, enabling unauthenticated administrator-level API access.

CVSS severity9.8
Critical
EPSS probability67.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in D-Link D-View 8 2.0.1.28 allows remote attackers to access protected APIs with a forged JWT. TokenUtils verifies every token with the embedded HMAC key D-Link, while WebApiRealm skips API-key validation when the account has no configured key. The default administrator has no API key and a stable user identifier, enabling unauthenticated administrator-level API access.

The record

CVE
CVE-2023-5074
Published
Sep 20, 2023
Updated
Sep 24, 2024
Vendor
D-Link
Product
D-View 8
Classifications
CWE-798, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.1.28

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · D-View 8version=2.0.1.28

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8Tenable Network SecurityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo