CVE-2023-34282: D-Link DIR-2150 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability

Q: How do I fix CVE-2023-34282?

dir-2150 firmware: upgrade to 1.06. Exact commands for each OS are on this page.

Q: Is CVE-2023-34282 being exploited?

CVE-2023-34282 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-34282 affect?

CVE-2023-34282 affects dir-2150 firmware. Severity is high (CVSS 8.8). 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 router

This month

HIGH 8.8UPGRADE

CVE-2023-34282 is a high-severity flaw (CVSS 8.8) affecting dir-2150 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 authe

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-303
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: dlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 02:15 UTCPublished CVE record published
2026-06-17 06:03 UTCUpdated Record last modified

dlink dir-2150 firmware UPGRADE

Affected: < 1.06

Fixed in: 1.06

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-34282?

dir-2150 firmware: upgrade to 1.06. Exact commands for each OS are on this page.

Is CVE-2023-34282 being exploited?

CVE-2023-34282 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-34282 affect?

CVE-2023-34282 affects dir-2150 firmware. Severity is high (CVSS 8.8). 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 router

How urgent is CVE-2023-34282?

Priority 47/100. High severity

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2024-5291 HIGH 8.8 MITIGATE D-Link DIR-2150 GetDeviceSettings Target Command Injection Remote Code Execution Vulnerability
CVE-2023-44415 HIGH 8.0 MITIGATE MITIGATE D-Link Multiple Routers cli Command Injection Remote Code Execution Vulnerability
CVE-2023-34281 HIGH 8.0 UPGRADE D-Link DIR-2150 GetFirmwareStatus Target Command Injection Remote Code Execution Vulnerability
CVE-2023-34280 HIGH 8.0 UPGRADE D-Link DIR-2150 SetSysEmailSettings EmailTo Command Injection Remote Code Execution Vulnerability
CVE-2023-34279 HIGH 8.8 UPGRADE D-Link DIR-2150 GetDeviceSettings Target Command Injection Remote Code Execution Vulnerability

References

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