CVE-2025-8242: TOTOLINK X15 Firmware buffer overflow (CVSS 8.8)

Description

A vulnerability has been found in TOTOLINK X15 1.0.0-B20230714.1105 and classified as critical. This vulnerability affects unknown code of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr/url/vpnPassword/vpnUser leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

TOTOLINK X15 Firmware1.0.0-b20230714.1105

Remediation

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

References

https://github.com/panda666-888/vuls/blob/main/totolink/x15/formFilter_ip6addr.mdExploit
https://github.com/panda666-888/vuls/blob/main/totolink/x15/formFilter_url.mdExploit
https://vuldb.com/?ctiid.317830Permissions Required
https://vuldb.com/?id.317830Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.622661Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.622662Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.622664Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.622665Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-8242 being actively exploited?

CVE-2025-8242 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.12%.

How severe is CVE-2025-8242?

CVE-2025-8242 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.12% probability of exploitation.

Which products are affected by CVE-2025-8242?

Affected products include TOTOLINK X15 Firmware.

How do I fix CVE-2025-8242?

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-2025-8242 against the real software inventory on every managed device, as each hourly inventory arrives. 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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