175 lines
6.8 KiB
JSON
175 lines
6.8 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-2026-76852",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-08-19T21:47:08.935Z",
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"datePublished": "2026-09-15T21:57:48.762Z",
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"dateUpdated": "2026-09-17T16:52:31.430Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-09-15T21:57:48.762Z"
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},
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"datePublic": "2026-09-04T00:00:00.000Z",
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"title": "Netcore NR268 1.7.121109 Forgeable Firmware Authenticity Check in mtd_write",
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"descriptions": [
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{
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"lang": "en",
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"value": "Netcore NR268 firmware version 1.7.121109 has an improper integrity verification flaw in mtd_write allowing forged firmware authenticity checks. Attackers can exploit put_file.cgi and check_image_uuid.c to bypass firmware signature validation and load unauthorized firmware images."
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}
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],
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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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"description": "Improper Validation of Integrity Check Value",
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"cweId": "CWE-354",
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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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"affected": [
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{
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"vendor": "Netcore",
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"product": "NR268",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "1.7.121109",
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"status": "affected",
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"versionType": "custom"
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}
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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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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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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://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr268-firmware-forgery.md",
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"name": "Netcore router public references: Forgeable Firmware Authenticity Check in mtd_write",
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"tags": [
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"third-party-advisory"
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]
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},
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{
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"name": "VulnCheck Advisory: Netcore NR268 1.7.121109 Forgeable Firmware Authenticity Check in mtd_write",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/netcore-nr268-1.7.121109-forgeable-firmware-authenticity-check-in-mtd-write"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Zhou Ao",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Yin Luxing",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Jiang Yuxuan",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Liu Xin",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "@Nebusec",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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": "2026-09-17T16:52:01.661088Z",
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"id": "CVE-2026-76852",
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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": "total"
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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": "2026-09-17T16:52:31.430Z"
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}
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}
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]
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}
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} |