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CVE-2023-34282

D-Link DIR-2150 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: May 3, 2024 at 01:57 AM UTC
Updated: June 17, 2026 at 06:03 AM UTC
2 products affected across 1 vendorDir 2150 FirmwareDir-2150

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

D-Link DIR-2150 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2150 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SOAP API interface, which listens on TCP port 80 by default. A crafted authentication header can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-20910.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dir 2150 Firmware· D-Link
95%
v < 1.061.05B11.05b01
Affected range stops below 1.06, so it looks safe — our inference, not a vendor statement
Dir-2150· D-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisoryThird Party Advisory
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-23-628/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-303NVD-CWE-Other

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