TI-2026-23858 Aliases CVE-2026-31167 GHSA-j4w2-w4h6-3353

An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing…

HIGH 68CWE-77Published 2026-04-23 · Updated 2026-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.

Summary

An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the mode parameter to /cgi-bin/cstecgi.cgi.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00279 20th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

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 · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:::::::*	17.0.0cu.557_b20221024	Vulnerable	TOTOLINK
cpe:2.3:h:totolink:a3300r:-:::::::*	not specified by NVD	Running on	TOTOLINK

cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:* Versions 17.0.0cu.557_b20221024 Vulnerable ·TOTOLINK
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:* 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-2026-31167
2026-10-03 Alias added: GHSA-j4w2-w4h6-3353
2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-mode-cmd-injection

TI-2026-23871 An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing… CVSS 3.1CRITICAL 9.8
TI-2026-23869 An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing… CVSS 3.1CRITICAL 9.8
TI-2026-23868 An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing… CVSS 3.1CRITICAL 9.8
TI-2026-23866 An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing… CVSS 3.1CRITICAL 9.8
TI-2026-23861 An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing… CVSS 3.1CRITICAL 9.8
TI-2025-32465 Totolink A3300R V17.0.0cu.596_B20250515 was found to contain a command injection… CVSS 3.1CRITICAL 9.8

See all 63 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences