CVE-2026-129354
D-Link DIR-600L HNAP cgibin hnap_main stack-based overflow
A flaw has been found in D-Link DIR-600L 2.17b02. Affected by this issue is the function hnap_main of the file htdocs/cgibin of the component HNAP Handler. Executing a manipulation can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| DIR-600L D-Link |
2.17b02 (affected) | CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 10.0 critical |
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 | CNA: VulDB |
| 3.1 / 10.0 critical |
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 | CNA: VulDB |
| 3.0 / 10.0 critical |
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 | CNA: VulDB |
| 2.0 / 10.0 critical |
AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | CNA: VulDB |
Exploit evidence
References
- https://vuldb.com/vuln/437417CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/437417/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-129354CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1043526CNA: VulDB · third-party-advisory
- https://github.com/ruanyi101/router-firmware-security-advisories/blob/main/router-firmware-GitHub-advisories/advisories/D-Link-DIR-600L-HNAP-SOAPAction.mdCNA: VulDB · exploit
- https://www.dlink.com/CNA: VulDB · product
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