TI-2025-13922 Aliases CVE-2025-15245 GHSA-vmgr-fvjw-m58r

D-Link DCS-850L Firmware Update Service uploadfirmware path traversal

MEDIUM 56CWE-22Published 2025-12-30 · Updated 2025-12-30

Key facts

Attack vector: Adjacent network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

A vulnerability was found in D-Link DCS-850L 1.02.09. Affected is the function uploadfirmware of the component Firmware Update Service. The manipulation of the argument DownloadFile results in path traversal. The attack must originate from the local network. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00579 47th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
D-Link	DCS-850L	1.02.09	—	No fix listed	CNA

DCS-850L VendorD-Link Affected 1.02.09 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:dlink:dcs-850l_firmware:1.02.09:::::::*	1.02.09	Vulnerable	D-Link Japan K.K.
cpe:2.3:h:dlink:dcs-850l:-:::::::*	not specified by NVD	Running on	D-Link Japan K.K.

cpe:2.3:o:dlink:dcs-850l_firmware:1.02.09:*:*:*:*:*:*:* Versions 1.02.09 Vulnerable ·D-Link Japan K.K.
cpe:2.3:h:dlink:dcs-850l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-15245
2026-10-03 Alias added: GHSA-vmgr-fvjw-m58r

References

Exploit 1

https://tzh00203.notion.site/D-Link-DCS850L-v1-02-09-Path-Traversal-Vulnerability-in-Firmware-Update-2d8b5c52018a803abbc7e30e2858d084?source=copy_link

Other 1

https://www.dlink.com/

TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8

See all 979 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences