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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-59762",
"assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"state": "PUBLISHED",
"assignerShortName": "f5",
"dateReserved": "2026-07-08T15:49:43.031Z",
"datePublished": "2026-07-15T14:33:44.468Z",
"dateUpdated": "2026-07-15T15:35:16.895Z"
},
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"modules": [
"All Modules"
],
"product": "BIG-IP",
"vendor": "F5",
"versions": [
{
"lessThan": "21.1.0.1",
"status": "affected",
"version": "21.1.0",
"versionType": "custom"
},
{
"lessThan": "21.0.0.3",
"status": "affected",
"version": "21.0.0",
"versionType": "custom"
},
{
"lessThan": "17.5.1.8",
"status": "affected",
"version": "17.5.0",
"versionType": "custom"
},
{
"lessThan": "17.1.3.4",
"status": "affected",
"version": "17.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"modules": [
"TMM"
],
"product": "BIG-IP Next for Kubernetes",
"vendor": "F5",
"versions": [
{
"lessThan": "2.3.2",
"status": "affected",
"version": "2.3.0",
"versionType": "custom"
},
{
"lessThan": "2.2.3",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"modules": [
"TMM"
],
"product": "BIG-IP Next SPK",
"vendor": "F5",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "1.9.0",
"versionType": "custom"
},
{
"lessThan": "1.7.18",
"status": "affected",
"version": "1.7.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"modules": [
"TMM"
],
"product": "BIG-IP Next CNF",
"vendor": "F5",
"versions": [
{
"lessThan": "2.3.2",
"status": "affected",
"version": "2.3.0",
"versionType": "custom"
},
{
"lessThan": "2.2.3",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
},
{
"lessThan": "1.4.3",
"status": "affected",
"version": "1.1.0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "F5 acknowledges the Okta Red Team of Okta for bringing this issue to our attention and following the highest standards of coordinated disclosure."
}
],
"datePublic": "2026-07-15T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>\n\n<span style=\"background-color: rgb(255, 255, 255);\">When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization.</span>&nbsp;&nbsp;<br></p>\n\n\n\n\n\n\n<span style=\"background-color: rgb(255, 255, 255);\">Impact:<br>System performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.<br></span>\n\n<br>\n\n<span style=\"background-color: rgb(255, 255, 255);\">Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.</span>\n\n<br>"
}
],
"value": "When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization.  \n\n\n\n\n\n\n\n\n\nImpact:\nSystem performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "Standard Deployment"
}
]
},
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"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:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "Standard Deployment"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"shortName": "f5",
"dateUpdated": "2026-07-15T14:33:44.468Z"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://my.f5.com/manage/s/article/K000162231"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "BIG-IP HTTP/2 vulnerability",
"x_generator": {
"engine": "F5 SIRTBot v1.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-15T15:34:45.499391Z",
"id": "CVE-2026-59762",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-15T15:35:16.895Z"
}
}
]
}
}