213 lines
8.9 KiB
JSON
213 lines
8.9 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-2026-7424",
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"assignerOrgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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"state": "PUBLISHED",
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"assignerShortName": "AMZN",
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"dateReserved": "2026-04-29T14:27:50.756Z",
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"datePublished": "2026-04-29T18:51:28.385Z",
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"dateUpdated": "2026-04-29T22:13:39.794Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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"shortName": "AMZN",
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"dateUpdated": "2026-04-29T22:13:39.794Z"
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},
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"title": "Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-TCP",
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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-191",
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"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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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-153",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-153: Input Data Manipulation"
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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": "AWS",
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"product": "FreeRTOS-Plus-TCP",
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"collectionURL": "https://github.com/FreeRTOS/FreeRTOS-Plus-TCP",
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"versions": [
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{
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"status": "affected",
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"version": "4.0.0",
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"lessThan": "4.2.6",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "4.3.0",
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"lessThan": "4.4.1",
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"versionType": "semver"
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},
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{
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"status": "unaffected",
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"version": "4.2.6"
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},
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{
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"status": "unaffected",
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"version": "4.4.1"
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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": "Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of service (permanent IP task freeze requiring hardware reset) by sending a single crafted DHCPv6 packet.\n\n\n\n\n\n\n\n\nThe issue is present whenever DHCPv6 is enabled.\n\n\n\n\n\n\n\n\nTo mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.",
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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>Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of service (permanent IP task freeze requiring hardware reset) by sending a single crafted DHCPv6 packet.</p><p><br></p><p>The issue is present whenever DHCPv6 is enabled.</p><p><br></p><p>To mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.</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://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1",
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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://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6",
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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://aws.amazon.com/security/security-bulletins/2026-022-aws/",
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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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"url": "https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wrhm-c99p-2p8g",
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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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"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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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "ADJACENT_NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
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"baseScore": 8.1,
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
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}
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},
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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": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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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": "HIGH",
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"baseScore": 7.2,
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"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"
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}
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}
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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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"source": {
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"discovery": "UNKNOWN"
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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": "2026-04-29T19:08:53.836749Z",
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"id": "CVE-2026-7424",
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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": "2026-04-29T19:09:03.842Z"
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}
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}
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]
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}
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} |