Vulnerability-Lookup

CVE-2026-64034 (GCVE-0-2026-64034)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:39 – Updated: 2026-08-05 12:38

Title

net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer

Summary

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer In mana_hwc_rx_event_handler(), resp->response.hwc_msg_id is read from DMA-coherent memory and bounds-checked, then mana_hwc_handle_resp() re-reads the same field from the same DMA buffer for test_bit() and pointer arithmetic. DMA-coherent memory is mapped uncacheable on x86 and is shared, unencrypted, in Confidential VMs (SEV-SNP/TDX), so each load goes directly to host-visible memory. A H/W can modify the value between the check and the use, bypassing the bounds validation. Fix this by reading hwc_msg_id exactly once using READ_ONCE() into a stack-local variable in mana_hwc_rx_event_handler(), and passing the validated value as a parameter to mana_hwc_handle_resp().

Severity

9.3 (Critical)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/a201c66edf2ebc6cf…
https://git.kernel.org/stable/c/70ad2dff8d052a85d…
https://git.kernel.org/stable/c/566f42fb67a7ebfed…
https://git.kernel.org/stable/c/6180a06bbc99fd911…
https://git.kernel.org/stable/c/09ec063d87c2dd3fa…
https://git.kernel.org/stable/c/3c4db56ccd13dd020…
https://git.kernel.org/stable/c/35f0f0a2536a4d604…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < a201c66edf2ebc6cfdc3813a889ba20fecebfae3 (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 70ad2dff8d052a85dfef15715b531f38a29108cf (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 566f42fb67a7ebfed6650e407e5b72e6b3e83bf7 (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 6180a06bbc99fd9114b8db4be6c4d46e40f046ef (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 09ec063d87c2dd3fa6f3561361a017bd882e9f37 (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 3c4db56ccd13dd020fbf43afabaee74a40ec75e4 (git) Affected: ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f , < 35f0f0a2536a4d604b4dbad92c85c4a8fdebb870 (git)	guessed
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/hw_channel.c"
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer\n\nIn mana_hwc_rx_event_handler(), resp-\u003eresponse.hwc_msg_id is read from\nDMA-coherent memory and bounds-checked, then mana_hwc_handle_resp()\nre-reads the same field from the same DMA buffer for test_bit() and\npointer arithmetic.\n\nDMA-coherent memory is mapped uncacheable on x86 and is shared,\nunencrypted, in Confidential VMs (SEV-SNP/TDX), so each load goes\ndirectly to host-visible memory. A H/W can modify the value\nbetween the check and the use, bypassing the bounds validation.\n\nFix this by reading hwc_msg_id exactly once using READ_ONCE() into a\nstack-local variable in mana_hwc_rx_event_handler(), and passing the\nvalidated value as a parameter to mana_hwc_handle_resp()."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires a malicious hypervisor or host that can modify MANA HWC DMA-coherent response buffers between guest kernel loads; it is not reachable by sending network packets to the guest\u0027s data path.\nAC:L - The attacker controlling the hypervisor fully controls DMA buffer contents and can reliably flip hwc_msg_id between the validation read and the use in mana_hwc_handle_resp() on uncacheable coherent memory.\nPR:N - The attacking hypervisor needs no guest OS credentials or capabilities; exploitation targets the guest kernel through the virtual device DMA path while the MANA driver is active.\nUI:N - No victim user action is required beyond normal Azure VM operation with the MANA driver loaded and HWC receive buffers posted.\nS:C - The vulnerability crosses the VM/DMA security boundary by allowing a hostile hypervisor to corrupt guest kernel memory that the confidential-guest threat model assumes is protected from host tampering.\nC:H - Out-of-bounds indexing via bypassed hwc_msg_id validation enables reading adjacent kernel heap objects through misdirected caller_ctx access and test_bit() on the inflight bitmap.\nI:H - Host-controlled response data is copied with memcpy() to an out-of-bounds output_buf pointer, enabling arbitrary kernel memory corruption and potential control-flow hijacking.\nA:H - Out-of-bounds caller_ctx access and corrupted completion signaling can cause kernel oops, panic, or hang during HWC response handling."
            }
          ]
        }
      ],
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        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/a201c66edf2ebc6cfdc3813a889ba20fecebfae3"
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        {
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        {
          "url": "https://git.kernel.org/stable/c/35f0f0a2536a4d604b4dbad92c85c4a8fdebb870"
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      "title": "net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer",
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    "datePublished": "2026-07-19T15:39:23.470Z",
    "dateReserved": "2026-07-19T07:54:57.028Z",
    "dateUpdated": "2026-08-05T12:38:28.529Z",
    "state": "PUBLISHED"
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                "versions": [
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer\n\nIn mana_hwc_rx_event_handler(), resp-\u003eresponse.hwc_msg_id is read from\nDMA-coherent memory and bounds-checked, then mana_hwc_handle_resp()\nre-reads the same field from the same DMA buffer for test_bit() and\npointer arithmetic.\n\nDMA-coherent memory is mapped uncacheable on x86 and is shared,\nunencrypted, in Confidential VMs (SEV-SNP/TDX), so each load goes\ndirectly to host-visible memory. A H/W can modify the value\nbetween the check and the use, bypassing the bounds validation.\n\nFix this by reading hwc_msg_id exactly once using READ_ONCE() into a\nstack-local variable in mana_hwc_rx_event_handler(), and passing the\nvalidated value as a parameter to mana_hwc_handle_resp()."
          }
        ],
        "id": "CVE-2026-64034",
        "lastModified": "2026-07-30T14:59:47.950",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 9.3,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
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              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
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        "published": "2026-07-19T16:17:43.620",
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          },
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          },
          {
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            "url": "https://git.kernel.org/stable/c/70ad2dff8d052a85dfef15715b531f38a29108cf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a201c66edf2ebc6cfdc3813a889ba20fecebfae3"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-29T14:55:39+00:00",
      "cve": "CVE-2026-64034",
      "id": "CVE-2026-64034",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:fixed": "453",
      "product_status:known_affected": "98",
      "product_status:known_not_affected": "43",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64034.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-21T16:48:26Z",
      "cve": "CVE-2026-64034",
      "id": "CVE-2026-64034",
      "initial_release_date": "2026-07-21T13:01:04Z",
      "product_status:first_fixed": "33",
      "product_status:known_affected": "583",
      "product_status:known_not_affected": "167",
      "product_status:recommended": "293",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64034",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64034.json",
      "version": "16"
    }
  }
}

RHSA-2026:72468

Vulnerability from csaf_redhat - Published: 2026-09-28 13:26 - Updated: 2026-09-29 17:20

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

13 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

A flaw was found in the Linux kernel's mana network driver. This Time-of-Check to Time-of-Use (TOCTOU) vulnerability allows a hardware component to modify a message identifier (hwc_msg_id) in Direct Memory Access (DMA) memory after it has been validated but before it is used. This manipulation bypasses critical bounds validation, potentially leading to unexpected system behavior or security bypasses, particularly in Confidential Virtual Machines (CVMs) where DMA memory is shared and unencrypted.

7.8 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 120 products

https://access.redhat.com/errata/RHSA-2026:72468

Open the full advisory

RLSA-2026:66180 (CVE-2026-43133)

Vulnerability from osv_rocky – Published: 2026-09-11 12:05 – Updated: 2026-09-25 12:14 – Source website

Summary

Important: kernel security, bug fix, and enhancement update

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)
kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)
kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)
kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)
kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)
kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)
kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)
kernel: Revert "net/smc: Introduce TCP ULP support" (CVE-2026-46330)
kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)
kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)
kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)
kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)
kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)
kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)
kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)
kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)
kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)

Bug Fix(es) and Enhancement(s):

KSM to deduplicate only zero pages [rhel-9.8.z] (JIRA:Rocky Linux-249161)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity

8.1 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:66180	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2467065	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2468102	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2479812	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2481936	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2482566	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2484456	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2486463	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2486999	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492329	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492811	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492841	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2501252	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2502394	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2510892	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2511932	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2516731	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2517046	REPORT
	https://access.redhat.com/errata/RHSA-2026:66180	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:5.14.0-687.46.1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:66180"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)\n\n* kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)\n\n* kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)\n\n* kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)\n\n* kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)\n\n* kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)\n\n* kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)\n\n* kernel: Revert \"net/smc: Introduce TCP ULP support\" (CVE-2026-46330)\n\n* kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)\n\n* kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)\n\n* kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)\n\n* kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)\n\n* kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)\n\n* kernel: rhashtable: clear stale iter-\u003ep on table restart (CVE-2026-64563)\n\n* kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)\n\n* kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)\n\n* kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)\n\nBug Fix(es) and Enhancement(s):\n\n* KSM to deduplicate only zero pages [rhel-9.8.z] (JIRA:Rocky Linux-249161)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:66180",
  "modified": "2026-09-25T12:14:06.605480Z",
  "published": "2026-09-11T12:05:26.835797Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:66180"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467065"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468102"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479812"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481936"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482566"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484456"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486463"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486999"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492329"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492811"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492841"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2501252"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502394"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510892"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511932"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516731"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517046"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:66180"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-43133",
    "CVE-2026-43339",
    "CVE-2026-43493",
    "CVE-2026-46015",
    "CVE-2026-46149",
    "CVE-2026-46266",
    "CVE-2026-46306",
    "CVE-2026-46330",
    "CVE-2026-53002",
    "CVE-2026-53223",
    "CVE-2026-53275",
    "CVE-2026-53366",
    "CVE-2026-64034",
    "CVE-2026-64563",
    "CVE-2026-64597",
    "CVE-2026-72129",
    "CVE-2026-74480"
  ]
}

SUSE-SU-2026:23066-1

Vulnerability from csaf_suse - Published: 2026-08-11 20:56 - Updated: 2026-09-26 08:29

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 8 products

Open the full advisory

SUSE-SU-2026:23068-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-26 08:29

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 28 products

Open the full advisory

SUSE-SU-2026:23221-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-26 08:29

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 114 products

Open the full advisory

SUSE-SU-2026:23231-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:26 - Updated: 2026-09-26 08:29

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 114 products

Open the full advisory

SUSE-SU-2026:23237-1

Vulnerability from csaf_suse - Published: 2026-08-11 21:34 - Updated: 2026-09-26 08:29

Summary

Security update for the Linux Kernel

Severity

Important

Scope

894 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 9 products

Open the full advisory

SUSE-SU-2026:23477-1

Vulnerability from csaf_suse - Published: 2026-09-08 12:54 - Updated: 2026-09-29 08:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

588 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 4 products

Open the full advisory

SUSE-SU-2026:23481-1

Vulnerability from csaf_suse - Published: 2026-09-08 13:00 - Updated: 2026-09-29 08:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

588 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 11 products

Open the full advisory

SUSE-SU-2026:23528-1

Vulnerability from csaf_suse - Published: 2026-09-08 10:34 - Updated: 2026-09-29 08:19

Summary

Security update for the Linux Kernel

Severity

Important

Scope

588 vulnerabilities in this advisory, including CVE-2026-64034.

CVE-2026-64034

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Recommended: 7 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-64034 (GCVE-0-2026-64034)

RLSA-2026:66180 (CVE-2026-43133)

Tags

Sightings

Nomenclature

Related by attack behaviour