CVE-2025-15245 json
D-Link DCS-850L Firmware Update Service uploadfirmware path traversal
published 2025-12-30 10 mo ago modified 2026-10-07 33 d ago also EUVD-2025-205771
- cvss
- 3.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- tzh00203.notion.site https://tzh00203.notion.site/D-Link-DCS850L-v1-02-09-Path-Traversal-Vulnerability-in-Firmware-Update-2d8b5c52018a803abbc7e30e2858d084?source=copy_link referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.1 | CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| CNA | 3.0 | 3.5 | CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| CNA | 2.0 | 2.7 | AV:A/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 2.0 | CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 2.0 | 2.7 | AV:A/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- D-Link DCS-850L
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
tzh00203.notion.site
/D-Link-DCS850L-v1-02-09-Path-Traversal-Vulnerability-in-Firmware-Update-2d8b5c52018a803abbc7e30e2858d084?sour
exploit, patch, third-party-advisory
-
vuldb.com
/?id.338635
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.338635
signature, permissions-required, vdb-entry
-
vuldb.com
/?submit.725742
third-party-advisory, vdb-entry
-
dlink.com
/
broken-link, product
Sources
- CVE List CVE-2025-15245
- NVD CVE-2025-15245
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.