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CVE-2026-4497

TOTOLINK Wa300 Firmware command injection

7.3 HIGHPublic exploitEPSS 2.88%
  1. Published20 Mar 2026

Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

TOTOLINK Wa300 Firmware5.2cu.7112_b20190227

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-4497 being actively exploited?

CVE-2026-4497 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.88%.

How severe is CVE-2026-4497?

CVE-2026-4497 has a CVSS 3.1 base score of 7.3, rated high. EPSS estimates a 2.88% probability of exploitation.

Which products are affected by CVE-2026-4497?

Affected products include TOTOLINK Wa300 Firmware.

How do I fix CVE-2026-4497?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-4497 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.