CVE-2026-93053 speakup: keyhelp: guard letter_offsets possible out-of-range indexing

🗓️ 17 Sep 2026 16:10:42Reported by LinuxType

speakup keyhelp OOB write in letter_offsets when root overrides function names outside a-z.

Reporter	Title	Published	Views	Family All 9
CVE	CVE-2026-93053	17 Sep 202616:10	–	cve
Debian CVE	CVE-2026-93053	17 Sep 202616:10	–	debiancve
EUVD	EUVD-2026-82163	17 Sep 202616:10	–	euvd
NVD	CVE-2026-93053	17 Sep 202617:17	–	nvd
OSV	AZL-103004 CVE-2026-93053 affecting package kernel 6.6.150.1-1	17 Sep 202617:17	–	osv
OSV	BELL-CVE-2026-93053	19 Sep 202606:06	–	osv
OSV	DEBIAN-CVE-2026-93053	17 Sep 202617:17	–	osv
OSV	UBUNTU-CVE-2026-93053	18 Sep 202600:00	–	osv
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-93053	18 Sep 202600:00	–	nessus

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/accessibility/speakup/keyhelp.c"
    ],
    "versions": [
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "fd339b9ef0accb2c24a5285df842552ebf5eb146",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "900cd6e5ef46bd15153762fb26bb03f874fccc52",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "6b39969c724d39b6062efa354dc2d38442bfd021",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "2e91ab73f9beb659f581e2a6a09f79ace1140905",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "d7deb90c4cd086cb111f0ecc9da021218fbde1b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "5310334762c3f08f51dc2414344dd47492c07d1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "ca4489b3e54666a7cac7294e71a3cf64e5e95286",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c6e3fd22cd538365bfeb82997d5b89562e077d42",
        "lessThan": "6a19ad4d68c95185308cd9e5d169b10a2cf236c8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/accessibility/speakup/keyhelp.c"
    ],
    "versions": [
      {
        "version": "2.6.37",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.37",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/900cd6e5ef46bd15153762fb26bb03f874fccc52
git	www.git.kernel.org/stable/c/fd339b9ef0accb2c24a5285df842552ebf5eb146
git	www.git.kernel.org/stable/c/ca4489b3e54666a7cac7294e71a3cf64e5e95286
git	www.git.kernel.org/stable/c/6a19ad4d68c95185308cd9e5d169b10a2cf236c8
git	www.git.kernel.org/stable/c/2e91ab73f9beb659f581e2a6a09f79ace1140905
git	www.git.kernel.org/stable/c/5310334762c3f08f51dc2414344dd47492c07d1d
git	www.git.kernel.org/stable/c/6b39969c724d39b6062efa354dc2d38442bfd021
git	www.git.kernel.org/stable/c/d7deb90c4cd086cb111f0ecc9da021218fbde1b0

17 Sep 2026 16:10Current

EPSS0.00176