Vulnerability-Lookup

CVE-2026-23442 (GCVE-0-2026-23442)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-06-01 16:11

Title

ipv6: add NULL checks for idev in SRv6 paths

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: add NULL checks for idev in SRv6 paths __in6_dev_get() can return NULL when the device has no IPv6 configuration (e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER). Add NULL checks for idev returned by __in6_dev_get() in both seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL pointer dereferences.

Severity

5.5 (Medium)


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

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6633 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/0348fa0ada37cef7c…
https://git.kernel.org/stable/c/83d705d35e583cb1b…
https://git.kernel.org/stable/c/d1bd8b9edc6752d10…
https://git.kernel.org/stable/c/50352fc103928e10e…
https://git.kernel.org/stable/c/bc9843c39f9932a8b…
https://git.kernel.org/stable/c/c5cedee5d97382176…
https://git.kernel.org/stable/c/a25853c9feea7bbf3…
https://git.kernel.org/stable/c/06413793526251870…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < 0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4 (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < 83d705d35e583cb1b1eacf196dfe7b77d442018e (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < d1bd8b9edc6752d10f84d28ff64f842401ce336d (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < 50352fc103928e10e8729abc79a0d05abef26c4d (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < bc9843c39f9932a8b36efd1d362ea00bb88e4e78 (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < c5cedee5d97382176573bbe21e1724e737a5eb64 (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < a25853c9feea7bbf31d157ff6e004d2d3b4f7f13 (git) Affected: 1ababeba4a21f3dba3da3523c670b207fb2feb62 , < 06413793526251870e20402c39930804f14d59c0 (git)	guessed
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.136 , ≤ 6.6.* (semver) Unaffected: 6.12.83 , ≤ 6.12.* (semver) Unaffected: 6.18.25 , ≤ 6.18.* (semver) Unaffected: 6.19.10 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)	guessed

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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: add NULL checks for idev in SRv6 paths\n\n__in6_dev_get() can return NULL when the device has no IPv6 configuration\n(e.g. MTU \u003c IPV6_MIN_MTU or after NETDEV_UNREGISTER).\n\nAdd NULL checks for idev returned by __in6_dev_get() in both\nseg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL\npointer dereferences."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nipv6: a\u00f1adir comprobaciones de NULL para idev en las rutas SRv6\n\n__in6_dev_get() puede devolver NULL cuando el dispositivo no tiene configuraci\u00f3n IPv6 (p. ej., MTU \u003c IPV6_MIN_MTU o despu\u00e9s de NETDEV_UNREGISTER).\n\nA\u00f1adir comprobaciones de NULL para idev devuelto por __in6_dev_get() tanto en seg6_hmac_validate_skb() como en ipv6_srh_rcv() para prevenir posibles desreferencias de puntero NULL."
          }
        ],
        "id": "CVE-2026-23442",
        "lastModified": "2026-07-24T21:10:00.143",
        "metrics": {
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                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/83d705d35e583cb1b1eacf196dfe7b77d442018e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d1bd8b9edc6752d10f84d28ff64f842401ce336d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-08T23:33:04+00:00",
      "cve": "CVE-2026-23442",
      "id": "CVE-2026-23442",
      "initial_release_date": "2026-04-03T00:00:00+00:00",
      "product_status:fixed": "917",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ipv6: add NULL checks for idev in SRv6 paths",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23442.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T16:43:19Z",
      "cve": "CVE-2026-23442",
      "id": "CVE-2026-23442",
      "initial_release_date": "2026-04-03T23:27:43Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "270",
      "product_status:known_not_affected": "6",
      "product_status:recommended": "345",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23442",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23442.json",
      "version": "21"
    }
  }
}

RHSA-2026:76739

Vulnerability from csaf_redhat - Published: 2026-10-08 16:46 - Updated: 2026-10-09 04:01

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

38 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

A flaw was found in the Linux kernel. Missing null pointer checks in the IPv6 Segment Routing (SRv6) implementation, specifically within the `seg6_hmac_validate_skb()` and `ipv6_srh_rcv()` functions, can occur when an IPv6 device lacks proper configuration. This oversight may allow an attacker to trigger a null pointer dereference, potentially leading to a system crash and a Denial of Service (DoS).

6.5 (Medium)


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

Fixed: 303 products

https://access.redhat.com/errata/RHSA-2026:76739

Open the full advisory

RHSA-2026:77219

Vulnerability from csaf_redhat - Published: 2026-10-08 08:26 - Updated: 2026-10-08 23:29

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

16 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Fixed: 305 products

https://access.redhat.com/errata/RHSA-2026:77219

Open the full advisory

RLSA-2026:64775 (CVE-2025-38004)

Vulnerability from osv_rocky – Published: 2026-09-09 12:09 – Updated: 2026-09-23 12:11 – 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: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)
kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442)
kernel: udp: Fix wildcard bind conflict check when using hash2 (CVE-2026-31503)
kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)
kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)
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: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)
kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (CVE-2026-53075)
kernel: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation (CVE-2026-53277)
kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)
kernel: net: add pskb_may_pull() to skb_gro_receive_list() (CVE-2026-53235)
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: ipv6: anycast: insert aca into global hash under idev->lock (CVE-2026-53259)
kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)
kernel: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() (CVE-2026-63993)
kernel: fuse: clear intr_entry in fuse_resend and fuse_remove_pending_req (CVE-2026-64265)
kernel: nvmet-auth: validate reply message payload bounds against transfer length (CVE-2026-64319)
kernel: KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (CVE-2026-64287)
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)

Bug Fix(es) and Enhancement(s):

Customer needs "netfilter: nfnetlink_queue: optimize verdict lookup with hash table" patch [Rocky Linux 10.2] (JIRA:Rocky Linux-132852)

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

7.8 (High)


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

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:64775	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2484456	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2370992	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2510892	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2507041	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2460736	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2511932	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2507096	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492745	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2486463	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2454807	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492295	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2502363	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2502369	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492841	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2481936	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492725	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492733	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492097	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2468102	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492850	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2492811	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2507129	REPORT
	https://access.redhat.com/errata/RHSA-2026:64775	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:6.12.0-211.52.1.el10_2"
            }
          ],
          "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-2026:64775"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)\n\n* kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442)\n\n* kernel: udp: Fix wildcard bind conflict check when using hash2 (CVE-2026-31503)\n\n* kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)\n\n* kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)\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: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)\n\n* kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (CVE-2026-53075)\n\n* kernel: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation (CVE-2026-53277)\n\n* kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)\n\n* kernel: net: add pskb_may_pull() to skb_gro_receive_list() (CVE-2026-53235)\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: ipv6: anycast: insert aca into global hash under idev-\u003elock (CVE-2026-53259)\n\n* kernel: ipv4: free net-\u003eipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)\n\n* kernel: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() (CVE-2026-63993)\n\n* kernel: fuse: clear intr_entry in fuse_resend and fuse_remove_pending_req (CVE-2026-64265)\n\n* kernel: nvmet-auth: validate reply message payload bounds against transfer length (CVE-2026-64319)\n\n* kernel: KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (CVE-2026-64287)\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\nBug Fix(es) and Enhancement(s):\n\n* Customer needs \"netfilter: nfnetlink_queue: optimize verdict lookup with hash table\" patch [Rocky Linux 10.2] (JIRA:Rocky Linux-132852)\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-2026:64775",
  "modified": "2026-09-23T12:11:35.390846Z",
  "published": "2026-09-09T12:09:16.585859Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:64775"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484456"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2370992"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510892"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507041"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460736"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511932"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507096"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492745"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486463"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454807"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492295"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502363"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502369"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492841"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481936"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492725"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492733"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492097"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468102"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492850"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492811"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507129"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:64775"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2025-38004",
    "CVE-2026-23442",
    "CVE-2026-31503",
    "CVE-2026-43339",
    "CVE-2026-46015",
    "CVE-2026-46266",
    "CVE-2026-46306",
    "CVE-2026-52933",
    "CVE-2026-53075",
    "CVE-2026-53223",
    "CVE-2026-53228",
    "CVE-2026-53235",
    "CVE-2026-53259",
    "CVE-2026-53275",
    "CVE-2026-53277",
    "CVE-2026-63993",
    "CVE-2026-64002",
    "CVE-2026-64265",
    "CVE-2026-64287",
    "CVE-2026-64319",
    "CVE-2026-64563",
    "CVE-2026-64597"
  ]
}

SUSE-SU-2026:2068-1

Vulnerability from csaf_suse - Published: 2026-05-26 07:29 - Updated: 2026-09-16 19:34

Summary

Security update for the Linux Kernel

Severity

Important

Scope

74 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 164 products

Open the full advisory

SUSE-SU-2026:21834-1

Vulnerability from csaf_suse - Published: 2026-05-28 11:12 - Updated: 2026-09-16 19:51

Summary

Security update for the Linux Kernel

Severity

Important

Scope

206 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 8 products

Open the full advisory

SUSE-SU-2026:21841-1

Vulnerability from csaf_suse - Published: 2026-05-28 11:40 - Updated: 2026-09-16 19:52

Summary

Security update for the Linux Kernel

Severity

Important

Scope

206 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 28 products

Open the full advisory

SUSE-SU-2026:21845-1

Vulnerability from csaf_suse - Published: 2026-05-28 11:49 - Updated: 2026-09-16 19:52

Summary

Security update for the Linux Kernel

Severity

Important

Scope

206 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 9 products

Open the full advisory

SUSE-SU-2026:21860-1

Vulnerability from csaf_suse - Published: 2026-05-28 11:40 - Updated: 2026-09-16 19:52

Summary

Security update for the Linux Kernel

Severity

Important

Scope

206 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 114 products

Open the full advisory

SUSE-SU-2026:21876-1

Vulnerability from csaf_suse - Published: 2026-05-29 15:23 - Updated: 2026-09-16 19:52

Summary

Security update for the Linux Kernel

Severity

Important

Scope

181 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 7 products

Open the full advisory

SUSE-SU-2026:21877-1

Vulnerability from csaf_suse - Published: 2026-05-29 16:26 - Updated: 2026-09-16 19:52

Summary

Security update for the Linux Kernel

Severity

Important

Scope

181 vulnerabilities in this advisory, including CVE-2026-23442.

CVE-2026-23442

6.5 (Medium)


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

Recommended: 17 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-2026-23442 (GCVE-0-2026-23442)

RLSA-2026:64775 (CVE-2025-38004)

Tags

Sightings

Nomenclature

Related by attack behaviour