CVE-2026-74676

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in vt_k_ioctl() enforce, allowing a process\nto change meta mode on a non-controlling console without authorization."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nvt: a\u00f1adir una comprobaci\u00f3n de permisos para el ioctl KDSKBMETA\n\nKDSKBMETA modifica el modo meta del teclado pero carece de la comprobaci\u00f3n !perm que todos los dem\u00e1s ioctls de configuraci\u00f3n de teclado en vt_k_ioctl() aplican, permitiendo a un proceso cambiar el modo meta en una consola no controladora sin autorizaci\u00f3n."}], "id": "CVE-2026-74676", "lastModified": "2026-11-06T17:19:53.990", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-74676", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T17:01:00.900032Z", "version": "2.0.3"}}]}, "published": "2026-08-22T16:16:41.710", "references": 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"url": "https://git.kernel.org/stable/c/ddc4a8303347114e945b9e6e81b81d77855f7358"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: vt: add permission check for KDSKBMETA ioctl", "id": "2521474", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521474"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1220", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvt: add permission check for KDSKBMETA ioctl\nKDSKBMETA modifies keyboard meta mode but lacks the !perm check that all\nother keyboard setter ioctls in vt_k_ioctl() enforce, allowing a process\nto change meta mode on a non-controlling console without authorization.", "A flaw was found in the Linux kernel. A missing permission check in the KDSKBMETA ioctl (input/output control) allows a local process to modify the keyboard meta mode on a non-controlling console without proper authorization. This could enable an attacker to make unauthorized changes to system keyboard settings."], "name": "CVE-2026-74676", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74676\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74676\nhttps://lore.kernel.org/linux-cve-announce/2026082230-CVE-2026-74676-f091@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,9f8cbaf4b774694dcc292e60509762483ebfd9ae)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ddc4a8303347114e945b9e6e81b81d77855f7358)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1c5b67a1e2cb7d78dab321280f330b056e3bf437)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4671c3b79e337bbae28c2d79023dc642df012bde)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,d8ead5083b203d12b8319e7cb29cc6b8836e813f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4671c3b79e337bbae28c2d79023dc642df012bde)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a1c31e026c93e378e297a8df8328983d3013a59f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,7bf32337a7103ccb686cbd240324bf26225ef2d6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a7ad0034453ba4c353f9b8f810ee2569de33d283)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.10.265)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.15.216)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.1.183)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.152)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.104)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.45)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.1.9)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-22T17:45:02.902319+00:00", "updated": "2026-08-25T14:00:17.976153+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-1220", "CWE-284"]}