Is CVE-2023-7219 actively exploited?

No active exploitation of CVE-2023-7219 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-7219 be exploited remotely?

Yes. CVE-2023-7219 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-7219?

CVE-2023-7219 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-7219

CWE-121Published: January 9, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability has been found in Totolink N350RT 9.3.5u.6139_B202012 and classified as critical. Affected by this vulnerability is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249853 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Risk Analysis

A stack-based buffer overflow exists in the Totolink N350RT router's loginAuth function, triggered by manipulating the http_host argument. This critical 9.8 CVSS flaw is remotely exploitable.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Update the device firmware to the latest version provided by Totolink to address the overflow.

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-2023-7219 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.