In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is…
Priority MEDIUM 49CWE-266Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-266.
Summary
In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized access to system files, privilege escalation, or use of the compromised server as a pivot point for internal network attacks.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00381 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:totolink:a7100ru_firmware:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:a7100ru:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
| cpe:2.3:o:totolink:a950rg_firmware:5.9:*:*:*:*:*:*:* | 5.9 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
| cpe:2.3:o:totolink:t10_firmware:5.9:*:*:*:*:*:*:* | 5.9 | Vulnerable | TOTOLINK |
| cpe:2.3:h:totolink:t10:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TOTOLINK |
- cpe:2.3:o:totolink:a7100ru_firmware:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:a7100ru:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
- cpe:2.3:o:totolink:a950rg_firmware:5.9:*:*:*:*:*:*:* Versions 5.9 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
- cpe:2.3:o:totolink:t10_firmware:5.9:*:*:*:*:*:*:* Versions 5.9 Vulnerable ·TOTOLINK
- cpe:2.3:h:totolink:t10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-44655
- 2026-10-03 Alias added: GHSA-c4ww-38fc-m44w
References
More TOTOLINK A7100ru Firmware vulnerabilities
- TI-2023-16578 TOTOLink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
- TI-2023-14113 TOTOLINK A7100RU V7.4cu.2313_B20191024 has a Command Injection vulnerability. CVSS 3.1CRITICAL 9.8
- TI-2023-14112 TOTOLINK A7100RU V7.4cu.2313_B20191024 is vulnerable to Command Injection. CVSS 3.1CRITICAL 9.8
- TI-2023-11987 TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
- TI-2023-11986 TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
- TI-2023-11985 TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-44655 · CVE Program
- CVE-2025-44655 · NVD
- FIRST EPSS
- GHSA-c4ww-38fc-m44w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences