CVE Explorer
CVE-2026-41927
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitrary code execution through return-oriented programming or return-to-libc techniques.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"WDR201A WiFi Extender","vendor":"Shenzhen Yipu Commercial and Trading Co., Ltd","versions":[{"lessThanOrEqual":"1.02.0","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.3,"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:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["technical-description","exploit"],"url":"https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /containers/cna/references/0
{"tags":["product"],"url":"https://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20China"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wdr201a-wifi-extender-stack-based-buffer-overflow-via-firewall-cgi"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:22c514a213196adc6b648a96e90e7ff420c9f971807e635988df7d6a9b0a6672 · sha256:e8c139caed38806c… · /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.