HOMEVULNERABILITIESCVE-2023-44809
CRITICAL

CVE-2023-44809

NVD-CWE-noinfoPublished: October 16, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

D-Link device DIR-820L 1.05B03 is vulnerable to Insecure Permissions.

NVD Source

Risk Analysis

The D-Link DIR-820L is vulnerable to insecure permissions, which can lead to a critical security compromise. With a CVSS score of 9.8, it poses a significant risk to the device.

No public exploit is known, and it is not in the CISA KEV. The issue is remotely exploitable.

Recommended Action

Update the device to the latest firmware version or apply patches if available from D-Link.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-44809 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

dlink2 product(s)
dir-820l firmwaredir-820l
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2023-44809
CVSS Score9.8 / 10
SeverityCRITICAL
CISA KEVNo
Affected1 vendor(s)
PublishedOct 16, 2023

Related CVEs (NVD-CWE-noinfo)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-44809 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.