{
  "threat_severity" : "Moderate",
  "public_date" : "2026-02-27T22:06:34Z",
  "bugzilla" : {
    "description" : "vim: Vim: Denial of service and information disclosure via crafted swap file",
    "id" : "2443474",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2443474"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-120",
  "details" : [ "Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.", "A flaw was found in Vim. This vulnerability, a heap-buffer-overflow and a segmentation fault, exists in the swap file recovery logic. A local attacker could exploit this by providing a specially crafted swap file. This could lead to a denial of service (DoS) or potentially information disclosure." ],
  "statement" : "The risk posed by this vulnerability is limited on Red Hat products due to user and system isolation features which are enabled by default. The impacts of this flaw will be limited by the active user's permissions and access control limits. Host systems are not at risk when following Red Hat guidelines and the root user account is not actively executing Vim.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "release_date" : "2026-04-02T00:00:00Z",
    "advisory" : "RHSA-2026:6502",
    "cpe" : "cpe:/o:redhat:enterprise_linux_eus:10.0",
    "package" : "vim-2:9.1.083-5.el10_0.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "release_date" : "2026-04-06T00:00:00Z",
    "advisory" : "RHSA-2026:6617",
    "cpe" : "cpe:/o:redhat:rhel_els:7",
    "package" : "vim-2:7.4.629-8.el7_9.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6915",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "vim-2:8.0.1763-22.el8_10.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6915",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "vim-2:8.0.1763-22.el8_10.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6730",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "vim-2:8.0.1763-13.el8_2.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6729",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "vim-2:8.0.1763-15.el8_4.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6729",
    "cpe" : "cpe:/a:redhat:rhel_eus_long_life:8.4",
    "package" : "vim-2:8.0.1763-15.el8_4.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6731",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.6",
    "package" : "vim-2:8.0.1763-19.el8_6.5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6731",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.6",
    "package" : "vim-2:8.0.1763-19.el8_6.5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6731",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.6",
    "package" : "vim-2:8.0.1763-19.el8_6.5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6736",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.8",
    "package" : "vim-2:8.0.1763-20.el8_8.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6736",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.8",
    "package" : "vim-2:8.0.1763-20.el8_8.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2026-04-06T00:00:00Z",
    "advisory" : "RHSA-2026:6619",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "vim-2:8.2.2637-16.el9_0.4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-04-06T00:00:00Z",
    "advisory" : "RHSA-2026:6620",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "vim-2:8.2.2637-20.el9_2.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2026-04-02T00:00:00Z",
    "advisory" : "RHSA-2026:6540",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "vim-2:8.2.2637-20.el9_4.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "release_date" : "2026-04-02T00:00:00Z",
    "advisory" : "RHSA-2026:6539",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.6",
    "package" : "vim-2:8.2.2637-22.el9_6.2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "vim",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Affected",
    "package_name" : "vim",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "vim",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Affected",
    "package_name" : "rhcos",
    "cpe" : "cpe:/a:redhat:openshift:4"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-28421\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-28421\nhttps://github.com/vim/vim/commit/65c1a143c331c886dc28\nhttps://github.com/vim/vim/releases/tag/v9.2.0077\nhttps://github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5p" ],
  "name" : "CVE-2026-28421",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}