CVE Explorer
CVE-2026-34119
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
cause
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","modules":["HTTP Parsing Loop"],"product":"Tapo C520WS v2.6","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.2.4 Build 260326 Rel.24666n","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /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":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_v5cvssurn:baitaphish:normalized-source-record:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-122","description":"CWE-122 Heap-based buffer overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /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:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /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:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/5047/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:56331e03375dd2354d96545bad7fefdc5cc6281d75cec6eeb703d13a9d058078 · sha256:ec2615ad512ae7e1… · /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.