CVE-2021-28696

🗓️ 27 Aug 2021 18:46:33Reported by XENType

cve🔗 web.nvd.nist.gov📰️ 5 Media mentions👁 155 Views

IOMMU page mapping issues on x8

Reporter	Title	Published	Views	Family All 90
ATTACKERKB	CVE-2021-28695	27 Aug 202119:15	–	attackerkb
ATTACKERKB	CVE-2021-28694	27 Aug 202119:15	–	attackerkb
ATTACKERKB	CVE-2021-28696	27 Aug 202119:15	–	attackerkb
AlpineLinux	CVE-2021-28694	27 Aug 202119:15	–	alpinelinux
AlpineLinux	CVE-2021-28695	27 Aug 202119:15	–	alpinelinux
AlpineLinux	CVE-2021-28696	27 Aug 202119:15	–	alpinelinux
BDU FSTEC	The vulnerability of Xen hypervisors, related to improper authorization, allows attackers to gain access to confidential data, compromise its integrity, and cause service failures.	14 Apr 202200:00	–	bdu_fstec
Circl	CVE-2021-28696	27 Aug 202122:28	–	circl
CNNVD	Xen 安全漏洞	25 Aug 202100:00	–	cnnvd
CVE	CVE-2021-28694	27 Aug 202118:46	–	cve

NVD

Node

xen xen

Node

fedoraproject fedoraMatch33

fedoraproject fedoraMatch34

fedoraproject fedoraMatch35

Node

debian debian_linuxMatch11.0

[
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "4.11.x"
      }
    ]
  },
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "xen-unstable"
      }
    ]
  },
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "4.12.x"
      }
    ]
  },
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "4.14.x"
      }
    ]
  },
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "4.15.x"
      }
    ]
  },
  {
    "product": "xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "affected",
        "version": "4.13.x"
      }
    ]
  }
]

Source	Link
openwall	www.openwall.com/lists/oss-security/2021/09/01/5
openwall	www.openwall.com/lists/oss-security/2021/09/01/1
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/
xenbits	www.xenbits.xenproject.org/xsa/advisory-378.txt
debian	www.debian.org/security/2021/dsa-4977
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/
security	www.security.gentoo.org/glsa/202208-23
openwall	www.openwall.com/lists/oss-security/2021/09/01/6
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/

17 Jun 2026 03:46Current

6.8Medium risk

Vulners AI Score6.8

CVSS 24.6

CVSS 3.16.8

EPSS0.00364

CWE-863