CVE Explorer
CVE-2026-6241
An authenticated format string vulnerability is present in the ONVIF AddScopes in Tapo C520WS v2, where user-controlled input is improperly passed to formatting functions without adequate sanitization. An attacker can inject format specifiers into ONVIF scope parameters to manipulate memory handling behavior.
Successful exploitation may cause the ONVIF management service to crash, resulting in DoS condition that impacts normal device operation.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Tapo C520WS v2","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.2.6 Build 260528","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","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:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-134","description":"CWE-134 Use of Externally-Controlled format string","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/references/1
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/5120/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2e0c56a3c7ccd10594c12bbcb333071f73386145cf599cfc24cf683085aa8a7f · sha256:5752f83617122b73… · /containers/cna/references/2
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.