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CVE-2026-0918

The Tapo C100 v5, 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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8b5768f95162f28177fdbe9b01bbe79394cfe931745c230e2a2bcd782a4e3415
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"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"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Tapo C100 v5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.4.3 Build 251128","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"Tapo C520WS v2","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.2.3 Build 251114","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Tapo C100 v5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.4.3 Build 251128","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"Tapo C520WS v2","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.2.3 Build 251114","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"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":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["third-party-advisory"],"url":"https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/6
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/tapo-c220/v1/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/1
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/tapo-c520ws/v2/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/3
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/tapo-c100/v5/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/5
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/tapo-c220/v1.60/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/0
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/tapo-c520ws/v2/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/2
{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/4923/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b4ab2f0f4fbe152dd2a384513a47c51c54ad0e96aefe606dd959498ade59b00a · sha256:682794bc63cf85c8… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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