TRENDnet TEW-822DRE vsftpd least privilege violation

published 2025-08-09 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-24055

cvss: 7.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits: 0; none known

A vulnerability was found in TRENDnet TEW-822DRE FW103B02. It has been classified as problematic. This affects an unknown part of the component vsftpd. The manipulation leads to least privilege violation. Attacking locally is a requirement. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 14 mo ago (2025-08-11)

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

notion.so https://www.notion.so/23e54a1113e78009adc9d909b254812b referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.3	CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CNA	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	3.0	7.0	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	2.0	6.0	AV:L/AC:H/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
CNA	4.0	6.4	CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
CNA	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	2.0	6.0	AV:L/AC:H/Au:S/C:C/I:C/A:C

Affected products

TRENDnet TEW-822DRE

Classification

Weakness

CWE-272 Least Privilege Violation
CWE-266 Incorrect Privilege Assignment

References

notion.so /23e54a1113e78009adc9d909b254812b
exploit
vuldb.com /?id.319263
vdb-entry
vuldb.com /?ctiid.319263
signature, permissions-required
vuldb.com /?submit.624299
third-party-advisory

Sources

CVE List CVE-2025-8758
NVD CVE-2025-8758

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary