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18 vulnerabilities found for tapo_c520ws_firmware by tp-link

CVE-2026-34124 (GCVE-0-2026-34124)

Vulnerability from nvd – Published: 2026-04-02 17:20 – Updated: 2026-04-03 13:05
VLAI?
Title
Denial of Service via Path Expansion Overflow in HTTP Service in TP-Link Tapo C520WS
Summary
A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
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CVE-2026-34122 (GCVE-0-2026-34122)

Vulnerability from nvd – Published: 2026-04-02 17:20 – Updated: 2026-04-02 17:59
VLAI?
Title
Stack-based Buffer Overflow Leading to Denial of Service in TP-Link Tapo C520WS
Summary
A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker can exploit this vulnerability by supplying an excessively long value for a vulnerable configuration parameter, resulting in a stack overflow. Successful exploitation results in Denial-of-Service (DoS) condition, leading to a service crash or device reboot, impacting availability.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34121 (GCVE-0-2026-34121)

Vulnerability from nvd – Published: 2026-04-02 17:20 – Updated: 2026-04-02 17:58
VLAI?
Title
Authentication Bypass in DS Configuration Service via HTTP Request Parsing Differential of TP-Link Tapo C520WS
Summary
An authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 was identified, due to inconsistent parsing and authorization logic in JSON requests during authentication check. An unauthenticated attacker can append an authentication-exempt action to a request containing privileged DS do actions, bypassing authorization checks. Successful exploitation allows unauthenticated execution of restricted configuration actions, which may result in unauthorized modification of device state.
Severity ?
8.7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34120 (GCVE-0-2026-34120)

Vulnerability from nvd – Published: 2026-04-02 17:19 – Updated: 2026-04-02 17:58
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to insufficient alignment and validation of buffer boundaries when processing streaming inputs.An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34119 (GCVE-0-2026-34119)

Vulnerability from nvd – Published: 2026-04-02 17:19 – Updated: 2026-04-03 13:06
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write‑boundary verification, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34118 (GCVE-0-2026-34118)

Vulnerability from nvd – Published: 2026-04-02 17:19 – Updated: 2026-04-02 17:48
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-1315 (GCVE-0-2026-1315)

Vulnerability from nvd – Published: 2026-01-27 17:53 – Updated: 2026-01-27 18:11
VLAI?
Title
Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS
Summary
By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
Create a notification for this product.
Credits
Diogo Almeida @NeWbie
Show details on NVD website
To clipboard 

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CVE-2026-0919 (GCVE-0-2026-0919)

Vulnerability from nvd – Published: 2026-01-27 17:52 – Updated: 2026-01-27 18:10
VLAI?
Title
Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C220 & C520WS
Summary
The HTTP parser of Tapo C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
Create a notification for this product.
Credits
Diogo Almeida @NeWbie
Show details on NVD website
To clipboard 

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CVE-2026-0918 (GCVE-0-2026-0918)

Vulnerability from nvd – Published: 2026-01-27 17:52 – Updated: 2026-03-16 17:58
VLAI?
Title
Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS
Summary
The Tapo C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C100 v5 Affected: 0 , < 1.4.3 Build 251128 (custom)
Create a notification for this product.
Credits
Diogo Almeida @NeWbie Azim Javed & Ayushman Agrawal Hingorani from CRAC Learning
Show details on NVD website
To clipboard 

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CVE-2026-34124 (GCVE-0-2026-34124)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:20 – Updated: 2026-04-03 13:05
VLAI?
Title
Denial of Service via Path Expansion Overflow in HTTP Service in TP-Link Tapo C520WS
Summary
A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34122 (GCVE-0-2026-34122)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:20 – Updated: 2026-04-02 17:59
VLAI?
Title
Stack-based Buffer Overflow Leading to Denial of Service in TP-Link Tapo C520WS
Summary
A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker can exploit this vulnerability by supplying an excessively long value for a vulnerable configuration parameter, resulting in a stack overflow. Successful exploitation results in Denial-of-Service (DoS) condition, leading to a service crash or device reboot, impacting availability.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34121 (GCVE-0-2026-34121)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:20 – Updated: 2026-04-02 17:58
VLAI?
Title
Authentication Bypass in DS Configuration Service via HTTP Request Parsing Differential of TP-Link Tapo C520WS
Summary
An authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 was identified, due to inconsistent parsing and authorization logic in JSON requests during authentication check. An unauthenticated attacker can append an authentication-exempt action to a request containing privileged DS do actions, bypassing authorization checks. Successful exploitation allows unauthenticated execution of restricted configuration actions, which may result in unauthorized modification of device state.
Severity ?
8.7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34120 (GCVE-0-2026-34120)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:19 – Updated: 2026-04-02 17:58
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to insufficient alignment and validation of buffer boundaries when processing streaming inputs.An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34119 (GCVE-0-2026-34119)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:19 – Updated: 2026-04-03 13:06
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write‑boundary verification, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34118 (GCVE-0-2026-34118)

Vulnerability from cvelistv5 – Published: 2026-04-02 17:19 – Updated: 2026-04-02 17:48
VLAI?
Title
Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS
Summary
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2.6 Affected: 0 , < 1.2.4 Build 260326 Rel.24666n (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-1315 (GCVE-0-2026-1315)

Vulnerability from cvelistv5 – Published: 2026-01-27 17:53 – Updated: 2026-01-27 18:11
VLAI?
Title
Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS
Summary
By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
Create a notification for this product.
Credits
Diogo Almeida @NeWbie
Show details on NVD website
To clipboard 

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CVE-2026-0919 (GCVE-0-2026-0919)

Vulnerability from cvelistv5 – Published: 2026-01-27 17:52 – Updated: 2026-01-27 18:10
VLAI?
Title
Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C220 & C520WS
Summary
The HTTP parser of Tapo C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
Create a notification for this product.
Credits
Diogo Almeida @NeWbie
Show details on NVD website
To clipboard 

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CVE-2026-0918 (GCVE-0-2026-0918)

Vulnerability from cvelistv5 – Published: 2026-01-27 17:52 – Updated: 2026-03-16 17:58
VLAI?
Title
Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS
Summary
The Tapo C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C220 v1 Affected: 0 , < 1.4.2 Build 251112 (custom)
Create a notification for this product.
    TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.3 Build 251114 (custom)
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    TP-Link Systems Inc. Tapo C100 v5 Affected: 0 , < 1.4.3 Build 251128 (custom)
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Credits
Diogo Almeida @NeWbie Azim Javed & Ayushman Agrawal Hingorani from CRAC Learning
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0918",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T18:07:03.278112Z",
                "version": "2.0.3"
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              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T18:07:32.574Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "http service"
          ],
          "product": "Tapo C220 v1",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.4.2 Build 251112",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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        {
          "defaultStatus": "unaffected",
          "product": "Tapo C520WS v2",
          "vendor": "TP-Link Systems Inc.",
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            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
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          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Tapo C100 v5",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
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          ]
        }
      ],
      "credits": [
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          "type": "finder",
          "value": "Diogo Almeida @NeWbie"
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          "type": "finder",
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      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "The Tapo C220 v1 and C520WS v2 cameras\u2019 HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash.\u0026nbsp;An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable."
            }
          ],
          "value": "The Tapo C220 v1 and C520WS v2 cameras\u2019 HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash.\u00a0An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476 NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-16T17:58:16.415Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/tapo-c220/v1.60/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/tapo-c220/v1/"
        },
        {
          "tags": [
            "patch"
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          "url": "https://www.tp-link.com/us/support/download/tapo-c520ws/v2/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/tapo-c520ws/v2/"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tp-link.com/us/support/faq/4923/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/tapo-c100/v5/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 \u0026 C520WS",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-0918",
    "datePublished": "2026-01-27T17:52:04.348Z",
    "dateReserved": "2026-01-13T19:43:58.914Z",
    "dateUpdated": "2026-03-16T17:58:16.415Z",
    "state": "PUBLISHED"
  },
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}