HOMEVULNERABILITIESCVE-2023-31729
CRITICAL

CVE-2023-31729

CWE-77Published: May 18, 2023· Updated: Jul 9, 2026

9.8
CVSS v3.1

Official Description

TOTOLINK A3300R v17.0.0cu.557 is vulnerable to Command Injection via /cgi-bin/cstecgi.cgi.

NVD Source

Risk Analysis

The TOTOLINK A3300R router is susceptible to command injection, which could allow an unauthenticated attacker to execute arbitrary commands on the device. With a CVSS score of 9.8, this represents a critical risk to the security of the network infrastructure.

No public exploit is currently known, and the vulnerability is not in the CISA KEV. It is remotely exploitable with low attack complexity.

Recommended Action

Users should update the device firmware to a version beyond 17.0.0cu.557 if available and restrict access to the management interface.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-31729 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

totolink2 product(s)
a3300r firmwarea3300r
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (5)

Quick Facts

CVE IDCVE-2023-31729
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedMay 18, 2023

Related CVEs (CWE-77)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-31729 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.