{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58089", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2026-06-29T01:40:17.498Z", "datePublished": "2026-08-26T04:30:06.543Z", "dateUpdated": "2026-08-26T15:24:26.038Z"}, "containers": {"cna": {"datePublic": "2026-08-25T19:45:00.000Z", "title": "hwpmc fails to detach PMCs during exec credential transitions", "references": [{"tags": ["vendor-advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:56.hwpmc.asc"}], "affected": [{"defaultStatus": "unknown", "modules": ["hwpmc"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"status": "affected", "versionType": "release", "version": "15.1-RELEASE", "lessThan": "p3"}, {"status": "affected", "versionType": "release", "version": "15.0-RELEASE", "lessThan": "p13"}, {"status": "affected", "versionType": "release", "version": "14.4-RELEASE", "lessThan": "p9"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Alexander Leidinger"}], "descriptions": [{"lang": "en", "value": "When a process calls execve(2) to execute a setuid or setgid image, hwpmc(4) is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly.\n\nAn unprivileged local user who has attached PMCs to a process can continue monitoring it after the process executes a setuid or setgid binary, contrary to the intended policy."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-273", "description": "CWE-273: Improper Check for Dropped Privileges", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-08-26T04:30:06.543Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-26T15:23:48.918745Z", "id": "CVE-2026-58089", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-26T15:24:26.038Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-58089", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-26T15:23:48.918745Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-26T15:24:22.691Z"}}], "cna": {"title": "hwpmc fails to detach PMCs during exec credential transitions", "credits": [{"lang": "en", "type": "finder", "value": "Alexander Leidinger"}], "affected": [{"vendor": "FreeBSD", "modules": ["hwpmc"], "product": "FreeBSD", "versions": [{"status": "affected", "version": "15.1-RELEASE", "lessThan": "p3", "versionType": "release"}, {"status": "affected", "version": "15.0-RELEASE", "lessThan": "p13", "versionType": "release"}, {"status": "affected", "version": "14.4-RELEASE", "lessThan": "p9", "versionType": "release"}], "defaultStatus": "unknown"}], "datePublic": "2026-08-25T19:45:00.000Z", "references": [{"url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:56.hwpmc.asc", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "When a process calls execve(2) to execute a setuid or setgid image, hwpmc(4) is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly.\n\nAn unprivileged local user who has attached PMCs to a process can continue monitoring it after the process executes a setuid or setgid binary, contrary to the intended policy."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-273", "description": "CWE-273: Improper Check for Dropped Privileges"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-08-26T04:30:06.543Z"}}}, "cveMetadata": {"cveId": "CVE-2026-58089", "state": "PUBLISHED", "dateUpdated": "2026-08-26T15:24:26.038Z", "dateReserved": "2026-06-29T01:40:17.498Z", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "datePublished": "2026-08-26T04:30:06.543Z", "assignerShortName": "freebsd"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "modules": ["hwpmc"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"lessThan": "p3", "status": "affected", "version": "15.1-RELEASE", "versionType": "release"}, {"lessThan": "p13", "status": "affected", "version": "15.0-RELEASE", "versionType": "release"}, {"lessThan": "p9", "status": "affected", "version": "14.4-RELEASE", "versionType": "release"}]}], "source": "secteam@freebsd.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When a process calls execve(2) to execute a setuid or setgid image, hwpmc(4) is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly.\n\nAn unprivileged local user who has attached PMCs to a process can continue monitoring it after the process executes a setuid or setgid binary, contrary to the intended policy."}], "id": "CVE-2026-58089", "lastModified": "2026-08-26T16:54:50.030", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58089", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-26T15:23:48.918745Z", "version": "2.0.3"}}]}, "published": "2026-08-26T05:18:12.080", "references": [{"source": "secteam@freebsd.org", "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:56.hwpmc.asc"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-273"}], "source": "secteam@freebsd.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15.1-RELEASE,p3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15.0-RELEASE,p13)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[14.4-RELEASE,p9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FreeBSD", "source": "cna", "vendor": "FreeBSD"}, "product": "freebsd", "vendor": "freebsd"}], "created": "2026-08-26T05:30:18.037603+00:00", "updated": "2026-08-26T18:45:10.353981+00:00", "vendors": ["freebsd", "freebsd$PRODUCT$freebsd"]}