CVE-2026-68452

🗓️ 13 Aug 2026 13:59:54Reported by LinuxType

Linux s390/zcrypt validates CCA AES cipher key request length to prevent buffer overflow in CPRB parameter block.

Reporter	Title	Published	Views	Family All 16
ATTACKERKB	CVE-2026-68452	13 Aug 202613:59	–	attackerkb
Cvelist	CVE-2026-68452 s390/zcrypt: Validate length for CCA AES cipher key requests	13 Aug 202613:59	–	cvelist
Debian	[SECURITY] [DSA 6466-1] linux security update	25 Aug 202620:09	–	debian
Debian CVE	CVE-2026-68452	13 Aug 202613:59	–	debiancve
Tenable Nessus	Debian dsa-6466 : ata-modules-6.12.101+deb13-armmp-di - security update	25 Aug 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-92-0952	12 Aug 202600:00	–	nessus
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-68452	13 Aug 202600:00	–	nessus
EUVD	EUVD-2026-57921	13 Aug 202613:59	–	euvd
NVD	CVE-2026-68452	13 Aug 202615:19	–	nvd
OSV	BELL-CVE-2026-68452	14 Aug 202606:04	–	osv

Vulners

CNA

Node

linux linux_kernelRange5.4–5.10.265

linux linux_kernelRange5.11.0–5.15.216

linux linux_kernelRange5.16.0–6.1.183

linux linux_kernelRange6.2.0–6.6.151

linux linux_kernelRange6.7.0–6.12.103

linux linux_kernelRange6.13.0–6.18.44

linux linux_kernelRange6.19.0–7.1.8

linux linux_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/zcrypt_ccamisc.c"
    ],
    "versions": [
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "be037204e4f595e4bd2159acda146677a1dc6342",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "4e500ecb6704d879f9c2417c2ed6faba595015ca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "7f9e5a3dbb14a9b321a1dfa30390402c673f82dc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "406b317ea2b501f6f5eca1264293c9399a73a778",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "4fc46deceda076d429ef3fab2ccf8d96629ebd23",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "ad93a1f1a45652478c0cf4eb029114e03af57f3b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "3859f630b674801a00bca39bc451f52288591f65",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
        "lessThan": "06afe425d5283b9764303de47f554da5a808ce8a",
        "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/zcrypt_ccamisc.c"
    ],
    "versions": [
      {
        "version": "5.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/be037204e4f595e4bd2159acda146677a1dc6342
git	www.git.kernel.org/stable/c/4e500ecb6704d879f9c2417c2ed6faba595015ca
git	www.git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23
git	www.git.kernel.org/stable/c/7f9e5a3dbb14a9b321a1dfa30390402c673f82dc
git	www.git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65
git	www.git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778
git	www.git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a
git	www.git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b

19 Aug 2026 17:20Current

5.2Medium risk

Vulners AI Score5.2

CVSS 3.17.8

EPSS0.00129