CVE-2026-6250

Description

An authenticated format string vulnerability exists in the ONVIF service of Tapo C110 v2 due to improper handling of user-controlled input. Externally controlled data is interpreted as a format string, which can be used to manipulate stack memory, including control flow data such as return addresses. A remote authenticated attacker may redirect execution flow to existing internal functions, triggering an unauthorized factory reset, leading to loss of configuration, deletion of stored credentials and service disruption.

CVSS v3.1 Score

8.1

HIGH

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

EPSS — Exploit Prediction

0.0046

Probability of exploitation

0.37%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-134 CWE-134

Affected Products

Vendor	Product	Versions
tp-link	tapo_c110_firmware	< 1.5.4
tp-link	tapo_c110	All

References

Advisories & Patches

https://www.tp-link.com/us/support/faq/5128/

Other References

https://www.tp-link.com/en/support/download/tapo-c110/v2/#Firmware-Release-Notes https://www.tp-link.com/kr/support/download/tapo-c110/v2/#Firmware-Release-Notes https://www.tp-link.com/us/support/download/tapo-c110/v2/#Firmware-Release-Notes

Frequently Asked Questions

What is CVE-2026-6250? +

An authenticated format string vulnerability exists in the ONVIF service of Tapo C110 v2 due to improper handling of user-controlled input. Externally controlled data is interpreted as a format string, which can be used to manipulate stack memory, including control flow data such as return addresses. A remote authenticated attacker may redirect execution flow to existing internal functions, triggering an unauthorized factory reset, leading to loss of configuration, deletion of stored credentials and service disruption. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-6250? +

CVE-2026-6250 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-6250? +

CVE-2026-6250 affects products from tp-link, specifically: tapo_c110, tapo_c110_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-6250? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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