{
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    "cveMetadata": {
        "cveId": "CVE-2026-25068",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-01-28T21:47:35.120Z",
        "datePublished": "2026-01-29T19:08:03.986Z",
        "dateUpdated": "2026-05-25T23:41:42.812Z"
    },
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                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-05-25T23:41:42.812Z"
            },
            "title": "alsa-lib 1.2.15.2 Topology Decoder Heap-based Buffer Overflow",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
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                            "base64": false,
                            "type": "text/html",
                            "value": "<div><div>alsa-lib versions 1.2.2 up to and including 1.2.15.2, prior to commit 5f7fe33, contain a heap-based buffer overflow in the topology mixer control decoder. The tplg_decode_control_mixer1() function reads the num_channels field from untrusted .tplg data and uses it as a loop bound without validating it against the fixed-size channel array (SND_TPLG_MAX_CHAN). A crafted topology file with an excessive num_channels value can cause out-of-bounds heap writes, leading to a crash.</div></div>"
                        }
                    ],
                    "value": "alsa-lib versions 1.2.2 up to and including 1.2.15.2, prior to commit 5f7fe33, contain a heap-based buffer overflow in the topology mixer control decoder. The tplg_decode_control_mixer1() function reads the num_channels field from untrusted .tplg data and uses it as a loop bound without validating it against the fixed-size channel array (SND_TPLG_MAX_CHAN). A crafted topology file with an excessive num_channels value can cause out-of-bounds heap writes, leading to a crash."
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "product": "alsa-lib",
                    "vendor": "ALSA Project",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.2.2",
                            "versionType": "custom",
                            "lessThanOrEqual": "1.2.15.2"
                        },
                        {
                            "status": "unaffected",
                            "version": "5f7fe33002d2d98d84f72e381ec2cccc0d5d3d40",
                            "versionType": "git"
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                                    "versionStartIncluding": "1.2.2",
                                    "versionEndExcluding": "1.2.15.2"
                                }
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                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-129",
                            "description": "CWE-129 Improper Validation of Array Index",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
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                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "LOCAL",
                        "baseScore": 4.6,
                        "baseSeverity": "MEDIUM",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "ACTIVE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "LOW",
                        "vulnConfidentialityImpact": "NONE",
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                        "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "source": {
                "discovery": "UNKNOWN"
            },
            "references": [
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/alsa-project/alsa-lib/commit/5f7fe33002d2d98d84f72e381ec2cccc0d5d3d40"
                },
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                    "tags": [
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                    "lang": "en",
                    "value": "Sajeeb Lohani (sml555 / prodigysml)",
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                                "timestamp": "2026-01-29T20:23:55.212503Z",
                                "id": "CVE-2026-25068",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "no"
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                                "version": "2.0.3"
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                    "dateUpdated": "2026-01-29T20:24:16.805Z"
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            {
                "title": "CVE Program Container",
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                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2026/02/msg00008.html"
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