D-Link DI-8100 16.07.26A1 File Extension file_exten.asp file_exten_asp Name buffer overflow
Summary
A vulnerability classified as critical was found in D-Link DI-8100 16.07.26A1. This affects the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name results in buffer overflow.
This vulnerability is identified as CVE-2026-7247. The attack can be executed remotely. Additionally, an exploit exists.
Details
A vulnerability classified as critical has been found in D-Link DI-8100 16.07.26A1. Affected is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument name with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-7247. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Technical details and a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/27/2026).
The exploit is shared for download at github.com. It is declared as proof-of-concept. By approaching the search of inurl:file_exten.asp it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.dlink.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 6.5
VulDB Base Score: 7.2
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/27/2026 Advisory disclosed04/27/2026 VulDB entry created
04/27/2026 VulDB entry last update
Sources
Vendor: dlink.comAdvisory: github.com
Status: Not defined
CVE: CVE-2026-7247 (🔒)
GCVE (CVE): GCVE-0-2026-7247
GCVE (VulDB): GCVE-100-359856
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/27/2026 19:49Changes: 04/27/2026 19:49 (57)
Complete: 🔍
Submitter: draw
Cache ID: 216::103
Submit
Accepted
- Submit #802868: D-Link DI-8100 16.07.26A1 Denial of Service (by draw)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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