169 lines
7.1 KiB
JSON
169 lines
7.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-6240",
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"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
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"state": "PUBLISHED",
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"assignerShortName": "TPLink",
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"dateReserved": "2026-04-13T17:10:23.938Z",
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"datePublished": "2026-06-05T23:51:39.483Z",
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"dateUpdated": "2026-06-08T13:08:05.175Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
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"shortName": "TPLink",
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"dateUpdated": "2026-06-05T23:51:39.483Z"
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},
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"title": "Authenticated Stack-based Buffer Overflow in ONVIF DeleteUsers Service on TP-Link Tapo C520WS",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-121",
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"description": "CWE-121 Stack-based buffer overflow",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-100",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-100 Overflow Buffers"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "TP-Link Systems Inc.",
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"product": "Tapo C520WS v2",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "1.2.6 Build 260528",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "A stack-based buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF DeleteUsers service, due to insufficient boundary checks when handling multiple user deletion parameters. An authenticated attacker can send a crafted malicious request containing an excessive number of identifiers to overflow stack memory.\n\nSuccessful exploitation may result in a service crash or deadlock, leading to DoS affecting device management and monitoring functionality.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>A stack-based buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF DeleteUsers service, due to insufficient boundary checks when handling multiple user deletion parameters. An authenticated attacker can send a crafted malicious request containing an excessive number of identifiers to overflow stack memory.\n<br>Successful exploitation may result in a service crash or deadlock, leading to DoS affecting device management and monitoring functionality. <br></p>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notes",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://www.tp-link.com/us/support/faq/5120/",
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"tags": [
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"vendor-advisory"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "ADJACENT",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "HIGH",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.8,
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"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"
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}
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.1"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-08T13:07:55.306567Z",
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"id": "CVE-2026-6240",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-08T13:08:05.175Z"
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}
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}
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]
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}
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} |