cve-2026-91962
MEDIUM CVSS 6.3 opencve
Description
FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.
Timeline
- Published
- 2026-09-15 16:17 UTC
- Last Modified
- 2026-09-23
CVSS Details
CVSS details not available.
Affected Products
No product information available.
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 4.0 | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
mitre | ||
| 3.1 | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
mitre | ||
| 4.0 | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
nvd | ||
| 3.1 | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
nvd | ||
| 4.0 | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
opencve | ||
| 3.1 | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
opencve | ||
| 3.1 | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
redhat |
References
No references available.
Linked Vulnerabilities
No linked vulnerabilities found.
{
"cve": "CVE-2026-91962",
"enrichment": {
"affected": [
{
"configurations": [
{
"platform": null,
"status": "affected",
"versions": {
"scheme": "semver",
"value": "[0,3.31.0)"
}
},
{
"platform": null,
"status": "unaffected",
"versions": {
"scheme": "semver",
"value": "3.31.0"
}
}
],
"enrichment": {
"confidence": 95.0,
"confidence_source": "inferred",
"scores": [
{
"score": 95.0,
"source": "inferred"
},
{
"score": 100.0,
"source": "matching"
}
]
},
"original": {
"product": "FreeRDP",
"source": "cna",
"vendor": "FreeRDP"
},
"product": "freerdp",
"vendor": "freerdp"
}
],
"created": "2026-09-15T17:45:17.113308+00:00",
"updated": "2026-09-20T17:15:17.887880+00:00",
"vendors": [
"freerdp",
"freerdp$PRODUCT$freerdp"
]
},
"epss": {
"score": 0.00244
},
"mitre": {
"cpes": [
"cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*"
],
"created": "2026-09-15T15:18:15.988000+00:00",
"description": "FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {
"score": 6.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
"cvssV4_0": {
"score": 5.3,
"vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
}
},
"mitre_repo_path": "cves/2026/91xxx/CVE-2026-91962.json",
"references": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg",
"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-apple-backends"
],
"title": "FreeRDP before 3.31.0 Integer Overflow via audin Apple backends",
"updated": "2026-09-17T14:58:43.285000+00:00",
"vendors": [
"freerdp",
"freerdp$PRODUCT$freerdp"
],
"weaknesses": [
"CWE-131"
]
},
"nvd": {
"cpes": [
"cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*"
],
"created": "2026-09-15T16:17:51.763000+00:00",
"description": "FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {
"score": 6.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
"cvssV4_0": {
"score": 5.3,
"vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
},
"nvd_repo_path": "2026/CVE-2026-91962.json",
"references": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg",
"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-apple-backends"
],
"title": null,
"updated": "2026-09-23T20:04:04.910000+00:00",
"vendors": [
"freerdp",
"freerdp$PRODUCT$freerdp"
],
"weaknesses": [
"CWE-131"
]
},
"opencve": {
"changes": [
{
"created": "2026-09-15T15:30:00+00:00",
"data": [
{
"details": {
"new": "FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.",
"old": null
},
"type": "description"
},
{
"details": {
"new": "FreeRDP before 3.31.0 Integer Overflow via audin Apple backends",
"old": null
},
"type": "title"
},
{
"details": [
"freerdp",
"freerdp$PRODUCT$freerdp"
],
"type": "first_time"
},
{
"details": {
"added": [
"CWE-131"
],
"removed": []
},
"type": "weaknesses"
},
{
"details": {
"added": [
"cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*"
],
"removed": []
},
"type": "cpes"
},
{
"details": {
"added": [
"freerdp",
"freerdp$PRODUCT$freerdp"
],
"removed": []
},
"type": "vendors"
},
{
"details": {
"added": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg",
"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-apple-backends"
],
"removed": []
},
"type": "references"
},
{
"details": {
"added": {
"cvssV3_1": {
"score": 6.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
"cvssV4_0": {
"score": 5.3,
"vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
}
},
"removed": {},
"updated": {}
},
"type": "metrics"
}
],
"id": "bbee0f65-2a7a-49be-a397-8b4c96c57ba9"
},
{
"created": "2026-09-16T00:15:00+00:00",
"data": [
{
"details": {
"added": [
"CWE-787"
],
"removed": []
},
"type": "weaknesses"
},
{
"details": {
"added": [
"https://nvd.nist.gov/vuln/detail/CVE-2026-91962",
"https://www.cve.org/CVERecord?id=CVE-2026-91962"
],
"removed": []
},
"type": "references"
},
{
"details": {
"added": {},
"removed": {},
"updated": {
"threat_severity": {
"new": "Moderate",
"old": null
}
}
},
"type": "metrics"
}
],
"id": "7c62294f-f029-4371-a4eb-223883888fb5"
},
{
"created": "2026-09-17T16:30:00+00:00",
"data": [
{
"details": {
"added": {
"ssvc": {
"options": {
"Automatable": "no",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
}
},
"removed": {},
"updated": {}
},
"type": "metrics"
}
],
"id": "6a7eb2e0-5817-4738-8b18-408a2fb5dbdc"
}
],
"cpes": {
"data": [
"cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*"
],
"providers": [
"mitre",
"nvd"
]
},
"created": {
"data": "2026-09-15T15:18:15+00:00",
"provider": "redhat"
},
"description": {
"data": "FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.",
"provider": "mitre"
},
"metrics": {
"cvssV2_0": {
"data": {},
"provider": null
},
"cvssV3_0": {
"data": {},
"provider": null
},
"cvssV3_1": {
"data": {
"score": 6.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
"provider": "mitre"
},
"cvssV4_0": {
"data": {
"score": 5.3,
"vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
},
"provider": "mitre"
},
"epss": {
"data": {
"score": 0.00244
},
"provider": "first"
},
"kev": {
"data": {},
"provider": null
},
"ssvc": {
"data": {
"options": {
"Automatable": "no",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
},
"provider": "vulnrichment"
},
"threat_severity": {
"data": "Moderate",
"provider": "redhat"
}
},
"references": {
"data": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg",
"https://nvd.nist.gov/vuln/detail/CVE-2026-91962",
"https://www.cve.org/CVERecord?id=CVE-2026-91962",
"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-apple-backends"
],
"providers": [
"mitre",
"nvd",
"redhat"
]
},
"title": {
"data": "FreeRDP before 3.31.0 Integer Overflow via audin Apple backends",
"provider": "mitre"
},
"updated": {
"data": "2026-09-17T15:16:57.940000+00:00",
"provider": "nvd"
},
"vendors": {
"data": [
"freerdp",
"freerdp$PRODUCT$freerdp"
],
"providers": [
"mitre",
"nvd",
"enrichment"
]
},
"weaknesses": {
"data": [
"CWE-131",
"CWE-787"
],
"providers": [
"mitre",
"nvd",
"redhat"
]
}
},
"redhat": {
"cpes": [],
"created": "2026-09-15T15:18:15+00:00",
"description": "A flaw was found in FreeRDP. An integer overflow in the audin Apple backends, specifically when processing FramesPerPacket values from MSG_SNDIN_OPEN messages, allows a malicious RDP (Remote Desktop Protocol) server to supply crafted values. This can cause the AudioQueueAllocateBuffer size computation to wrap, leading to an undersized buffer allocation and potential out-of-bounds access. This memory safety issue could result in information disclosure, denial of service, or potentially arbitrary code execution.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {
"score": 6.3,
"vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
},
"threat_severity": "Moderate"
},
"redhat_repo_path": "2026/CVE-2026-91962.json",
"references": [
"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f5p6-88mh-59vg",
"https://nvd.nist.gov/vuln/detail/CVE-2026-91962",
"https://www.cve.org/CVERecord?id=CVE-2026-91962",
"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-integer-overflow-via-audin-apple-backends"
],
"title": "FreeRDP: FreeRDP: Remote out-of-bounds access via integer overflow in audin Apple backends",
"updated": "2026-09-15T15:18:15+00:00",
"vendors": [],
"weaknesses": [
"CWE-787"
]
},
"vulnrichment": {
"cpes": [],
"created": "2026-09-15T15:18:15.988000+00:00",
"description": "FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.",
"metrics": {
"cvssV2_0": {},
"cvssV3_0": {},
"cvssV3_1": {},
"cvssV4_0": {},
"kev": {},
"ssvc": {
"options": {
"Automatable": "no",
"Exploitation": "none",
"Technical Impact": "partial"
},
"version": "2.0.3"
}
},
"references": [],
"title": "FreeRDP before 3.31.0 Integer Overflow via audin Apple backends",
"updated": "2026-09-17T14:58:35.682000+00:00",
"vendors": [],
"vulnrichment_repo_path": "2026/91xxx/CVE-2026-91962.json",
"weaknesses": []
}
}
Enrichment data
Aggregated bundle (all enrichments)