TRENDnet TEW-822DRE FW103B02 vsftpd least privilege violation

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability was found in TRENDnet TEW-822DRE FW103B02. It has been rated as problematic. Affected is an unknown function of the component vsftpd. Performing a manipulation results in least privilege violation. This vulnerability was named CVE-2025-8758. The attack needs to be approached locally. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in TRENDnet TEW-822DRE FW103B02. It has been classified as critical. This affects an unknown function of the component vsftpd. The manipulation with an unknown input leads to a least privilege violation vulnerability. CWE is classifying the issue as CWE-272. The elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed. This is going to have an impact on confidentiality, integrity, and availability.
It is possible to read the advisory at notion.so. This vulnerability is uniquely identified as CVE-2025-8758. The exploitability is told to be difficult. Attacking locally is a requirement. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
The exploit is shared for download at notion.so. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-24055). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.7
VulDB Base Score: 7.0
VulDB Temp Score: 6.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 7.0
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Least privilege violationCWE: CWE-272 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
08/08/2025 Advisory disclosed08/08/2025 VulDB entry created
08/09/2025 VulDB entry last update
Sources
Advisory: notion.soStatus: Not defined
CVE: CVE-2025-8758 (🔒)
GCVE (CVE): GCVE-0-2025-8758
GCVE (VulDB): GCVE-100-319263
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 08/08/2025 17:38Updated: 08/09/2025 19:05
Changes: 08/08/2025 17:38 (55), 08/09/2025 18:34 (30), 08/09/2025 19:05 (1)
Complete: 🔍
Submitter: TPCHECKER
Cache ID: 216::103
Submit
Accepted
- Submit #624299: TRENDnet TEW-822DRE FW103B02 Misconfiguration (by TPCHECKER)
Be aware that VulDB is the high quality source for vulnerability data.
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