Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
On Tapo C520WS v2, restricted accounts (for example, hub users) are intended to execute only a limited set of low‑sensitivity operations. Due to a logic flaw in the device’s API authorization mechanism, an attacker can craft requests that leverage legitimate “method mapping” behavior to bypass whitelist restrictions, allowing restricted operations to be masked as permitted requests and executed. Successful exploitation may allow an attacker (with access to a restricted account) to execute unauthorized sensitive operations. Depending on the operation invoked, impact could include device resets, unintended configuration changes, or disruption of normal operation, leading to loss of availability and integrity of the device.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-04-03 | 1 | Disclosure1 |
| 2026-06-19 | 1 | General1 |
⚠️ Vulnerabilidades en productos TP-Link ❗ CVE-2026-8714 ❗ CVE-2026-34123 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-tp-link-6/ https://t.co/mNzGXJqEOt
Post summary
The tweet simply lists two CVE identifiers for TP‑Link products and provides a link for more information, but offers no PoC, exploit, patch, or technical details.
⚠️ **Vulnerability Alert:** Multiple Buffer Overflow and Auth Bypass Vulnerabilities in TP-Link Tapo C520WS (CVE-2026-34118 through CVE-2026-34124) 📅 **Timeline:** Disclosure: 2026-04-02; Patch: Not stated 🆔 **CVE-2026-34118** | 📊 CVSS: 7.1 (HIGH 🟠) 🆔 **CVE-2026-34119** | 📊 CVSS: 7.1 (HIGH 🟠) 🆔 **CVE-2026-34120** | 📊 CVSS: 7.1 (HIGH 🟠) 🆔 **CVE-2026-34121** | 📊 CVSS: 8.7 (HIGH 🟠) 🆔 **CVE-2026-34122** | 📊 CVSS: 7.1 (HIGH 🟠) 🆔 **CVE-2026-34123** 🆔 **CVE-2026-34124** | 📊 CVSS: 7.1 (HIGH 🟠) 🛠️ **Exploit Maturity:** Not Available 🔧 **Fixed Versions:** Patched by TP-Link (vendor firmware update; specific fixed version not stated) 🫨 **Attack Vectors:** - Adjacent network (same network segment) — crafted HTTP requests - Unauthenticated HTTP request / authorization bypass (CVE-2026-34121) - Streaming/local video request parsing vectors 📝 **Summary:** Multiple heap- and stack-based buffer overflows in Tapo C520WS allow adjacent-network attackers to trigger crashes/DoS and potentially escalate to remote code execution depending on exploitability. Separately, CVE-2026-34121 is an unauthenticated authorization bypass that permits unauthorized configuration changes. 📈 **Impact Scope:** Widely deployed Tapo C520WS devices in homes and businesses — risks include device outages, unauthorized configuration changes, privacy exposure, and potential lateral compromise if memory-corruption flaws are weaponized. 🛡️ **Recommended Actions:** - Apply the TP-Link firmware update immediately when available and verify device versions - Isolate cameras on a dedicated VLAN and restrict HTTP/management access - Block or limit HTTP access from untrusted networks and the internet - Monitor device logs and network traffic for abnormal HTTP requests and repeated crashes - Maintain an inventory of affected devices and consider temporary removal from sensitive networks if you cannot patch 🪢 **Related Resources:** - https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes - https://cyberpress.org/critical-tp-link/ 🏷 **Tags:** #Cybersecurity #IoT #TapoC520WS
Post summary
The post details multiple buffer overflow and authorization bypass CVEs in TP‑Link Tapo C520WS, providing technical risk details and recommending immediate firmware updates.