Vulnerability details
CVE-2026-120189
D-Link DIR-505
D-Link DIR-505 TFTP Upload Filename tftpd mp_upload_file stack-based overflow
CVSS 4.0
10.0Critical
Official description
A vulnerability was identified in D-Link DIR-505 1.10B02. Affected is the function save_upload_file/mp_upload_file of the file /usr/bin/tftpd of the component TFTP Upload Filename Handler. The manipulation leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P |
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 10.0Critical | 3.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 10.0High | 2.0 | CVEProject cvelistV5 (CNA) (VulDB) | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| D-Link | DIR-505 | 1.10B02 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://vuldb.com/vuln/429528 vdb-entrytechnical-description
- https://vuldb.com/vuln/429528/cti signaturepermissions-required
- https://vuldb.com/cve/CVE-2026-120189 third-party-advisory
- https://vuldb.com/submit/1027185 third-party-advisory
- https://github.com/Walnut1337/DIR-505_filename_rce/tree/main/poc exploit
- https://www.dlink.com/ product
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Details
- Published
- 2026-11-01
- Last updated
- 2026-11-05
- State
- Published
- Assigner (CNA)
- VulDB
- Kolun priority
- 49 · Medium
Exploit prediction (EPSS)
1.34%
Probability of exploitation in 30 days
71.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-121Stack-based Buffer Overflow
- CWE-119Memory Corruption