Is CVE-2026-5996 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-5996, but active exploitation has not been confirmed.

Can CVE-2026-5996 be exploited remotely?

Yes. CVE-2026-5996 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5996?

CVE-2026-5996 has a CVSS score of 9.8 (CRITICAL).

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CRITICALPOC

CVE-2026-5996

CWE-77Published: April 10, 2026· Updated: Apr 13, 2026

9.8

CVSS v3.1

EPSS:0.89%probability of exploitation in 30 daysPercentile:75.6th

Official Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setAdvancedInfoShow of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument tty_server leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

NVD Source

Technical Analysis

CVE-2026-5996 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.

A proof-of-concept (PoC) exploit exists for CVE-2026-5996. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.