CVE-2026-6239 (GCVE-0-2026-6239)
Vulnerability from cvelistv5
Published
2026-06-05 23:50
Modified
2026-06-08 13:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-121 - Stack-based buffer overflow
Summary
A stack‑based
buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF CreateUsers service, where
the device fails to properly validate the number of XML user nodes during
request processing. An authenticated attacker can send a specially crafted
ONVIF request containing an excessive number of user entries to trigger memory
corruption.
Successful
exploitation may cause the ONVIF management service to terminate unexpectedly,
resulting in a denial‑of‑service (DoS) condition that disrupts device
configuration and management functions.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| TP-Link Systems Inc. | Tapo C520WS v2 |
Version: 0 < 1.2.6 Build 260528 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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