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CVE-2026-68453

🗓️ 13 Aug 2026 13:59:56Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 21 Views

s390/zcrypt buffer over-read in cca_cipher2protkey via unvalidated CCA token length fields can crash kernel or expose memory.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-68453 s390/zcrypt: Fix buffer over-read in cca_cipher2protkey
13 Aug 202613:59
cvelist
debiancve
Debian CVE
CVE-2026-68453
13 Aug 202613:59
debiancve
euvd
EUVD
EUVD-2026-57922
13 Aug 202613:59
euvd
nvd
NVD
CVE-2026-68453
13 Aug 202615:19
nvd
osv
OSV
BELL-CVE-2026-68453
14 Aug 202606:04
osv
osv
OSV
DEBIAN-CVE-2026-68453
13 Aug 202615:19
osv
osv
OSV
UBUNTU-CVE-2026-68453
13 Aug 202615:19
osv
ptsecurity
Positive Technologies
PT-2026-71615
13 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-68453
13 Aug 202616:44
redhatcve
susecve
SUSE CVE
SUSE CVE-2026-68453
25 Aug 202601:23
susecve
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.46.18.44
linuxlinux_kernelRange6.19.07.1.8
linuxlinux_kernelRange7.2.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/crypto/pkey_cca.c",
      "drivers/s390/crypto/zcrypt_ccamisc.c",
      "drivers/s390/crypto/zcrypt_ccamisc.h"
    ],
    "versions": [
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "a57fd7fcdb63e2d5ceac78bbe825ec986062a9da",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "3b2abee2a678607ae27975bc6833785c2002df43",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "36b230835b8a008266aad22168ca52afacc8a58d",
        "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/s390/crypto/pkey_cca.c",
      "drivers/s390/crypto/zcrypt_ccamisc.c",
      "drivers/s390/crypto/zcrypt_ccamisc.h"
    ],
    "versions": [
      {
        "version": "5.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 06:17Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.1
EPSS0.00127
21