HOMEVULNERABILITIESCVE-2023-46976
CRITICAL

CVE-2023-46976

CWE-77Published: October 31, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

TOTOLINK A3300R 17.0.0cu.557_B20221024 contains a command injection via the file_name parameter in the UploadFirmwareFile function.

NVD Source

Risk Analysis

A command injection vulnerability exists in the TOTOLINK A3300R firmware during the firmware upload process. This critical flaw allows remote attackers to execute arbitrary commands without authentication.

There is no public exploit circulating for this vulnerability, and it is not tracked in the CISA KEV.

Recommended Action

Update the TOTOLINK A3300R firmware to a version newer than 17.0.0cu.557_B20221024.

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-2023-46976 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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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2023-46976
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedOct 31, 2023

Related CVEs (CWE-77)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-46976 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.