CVE Explorer

CVE-2026-41926

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the firewall.cgi binary across five request handlers that apply insufficient input validation. Attackers can inject arbitrary shell commands through vulnerable parameters like websURLFilter, websHostFilter, portForward, singlePortForward, and ipportFilter using subshell syntax or unfiltered parameters, with payloads persisting in NVRAM and re-executing on every subsequent firewall.cgi request

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ab5783ec9ee25d0730c6bc6ebf9ad9e54a1d6386d900a7120800fba9b8018e3

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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_v5affected
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /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":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","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:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-78","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /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_v5reference
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /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_v5reference
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /containers/cna/references/1

{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wdr201a-wifi-extender-os-command-injection-via-firewall-cgi"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:232f58fd19dbb306f6845d3766771e5cc9e17a6cfb0b32e35799fcde1e3c3ce4 · sha256:b5a68fdb1f7be6e5… · /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.

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