CVE-2026-120189

D-Link DIR-505 TFTP Upload Filename tftpd mp_upload_file stack-based overflow

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.

Affected

D-Link · DIR-505

CVSS v4.0 VULDB

9.3 CRITICALCVSS: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/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

CVSS v3.1 VULDB

10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0 VULDB

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

1.35% chance of exploitation in the next 30 days, 71st percentile

Published

2026-11-01

Proof-of-concept exploits (1)

• Walnut1337/DIR-505_filename_rce/tree/main/pocRepo stars 0★ · pushed 2026-10-13 · snapshot
  3 files

  poc/gen_tftpd_rop.pypoc/poc_rop_rce.shpoc/tftp_client.py

CVE references

• https://vuldb.com/cve/CVE-2026-120189ADVISORY
• https://vuldb.com/submit/1027185ADVISORY
• https://vuldb.com/vuln/429528REFERENCE
• https://vuldb.com/vuln/429528/ctiREFERENCE
• https://www.dlink.comREFERENCE

References

• CVE Record
• NVD entry

Related

• CVE-2014-3936
• CVE-2015-2051
• CVE-2016-5681
• CVE-2026-110536
• CVE-2026-118579
• CVE-2026-94089