CVE-2023-5154
Dlink Dar-8000 Firmware ≤ 2015-12-31
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LSummary
CVE-2023-5154 is a medium-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Dlink Dar-8000 Firmware. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-5154 is an unrestricted file upload vulnerability, tracked under CWE-434, that affects the D-Link DAR-8000 network device in firmware versions up to 20151231. The flaw resides in the file_upload argument of /sysmanage/changelogo.php and permits an attacker to upload arbitrary files without sufficient validation. The issue was assigned a CVSS 3.1 base score of 6.3 and is explicitly marked “UNSUPPORTED WHEN ASSIGNED” because the product reached end-of-life status years earlier.
An authenticated remote attacker with low privileges can send a crafted HTTP request to the affected endpoint and place malicious files on the device, resulting in limited but direct impact to confidentiality, integrity, and availability. Public exploit code demonstrating the upload has been released on GitHub, confirming that the attack requires no user interaction and can be launched over the network.
D-Link’s support announcement SAP10354 and direct vendor correspondence confirm that the DAR-8000 series is no longer maintained; the vendor advises immediate retirement and replacement rather than patching. No official firmware update is available.
The EPSS score currently stands at 0.7997, matching its observed peak, indicating sustained exploitation interest after public disclosure of the proof-of-concept.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-57492
Vulnerability Data
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability has been found in D-Link DAR-8000 up to 20151231 and classified as critical. This vulnerability affects unknown code of the file /sysmanage/changelogo.php. The manipulation of the argument file_upload leads to unrestricted upload. The…
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attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-240250 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.1.1
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.
Hardened configuration baselines can enforce allowed file types and processing rules.
Secure development practices include input validation and file-type restrictions that prevent this weakness.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Configuration and acceptance testing verify that file-upload handling enforces allowed types and does not permit dangerous content to be stored or executed.
Secure-coding guidelines and security testing explicitly address restrictions on allowed file types and upload handling, reducing the risk that dangerous file uploads are accepted without validation.
Mandated testing for malicious content and known vulnerabilities reduces the likelihood that an outsourced component will contain or accept dangerous file types that could later be uploaded or executed.
Application allow-listing and pre-use scanning of received files directly blocks the introduction of executable content that has not been vetted, eliminating the primary vector for unrestricted dangerous file uploads.