# CVE-2023-7008: Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes Status: published. Published: 2023-12-23. Updated: 2026-11-02. A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles (or the upstream DNS resolver) to manipulate records. ## Remediation - workaround: 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. (source: CNA: redhat) ## Affected products and versions - Red Hat / Red Hat Enterprise Linux 8 (systemd): ≥ 0:239-82.el8; < * (unaffected, rpm). Source: CNA: redhat - Red Hat / Red Hat Enterprise Linux 9 (systemd): ≥ 0:252-32.el9_4; < * (unaffected, rpm). Source: CNA: redhat - Red Hat / Cryostat 2 (systemd): Version range not reported. Source: CNA: redhat - Siemens / SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: ≥ 0; < V1.1 (affected, custom). Source: ADP: siemens-SADP ## NVD configuration conditions Affected CPE matches depend on the following AND/OR and negation conditions: ```json [ { "negate": false, "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:systemd_project:systemd:25:*:*:*:*:*:*:*", "vulnerable": true } ], "negate": false, "operator": "OR" }, { "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": false }, { "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": false } ], "negate": false, "operator": "OR" } ], "operator": "AND" } ] ``` ## Severity and prioritization - CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N; source: CNA: redhat - CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N; source: NVD: nvd@nist.gov - CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N; source: NVD: secalert@redhat.com - CISA KEV: No listing in collected sources - EPSS: 0.85% as of 2026-11-02; percentile 58.13% - SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP - Weaknesses: CWE-300 ## Exploit evidence No exploit evidence in collected sources. This is not proof of no exploitation. ## References - https://access.redhat.com/errata/RHSA-2024:2463 (CNA: redhat; vendor-advisory, x_refsource_REDHAT) - https://access.redhat.com/errata/RHSA-2024:3203 (CNA: redhat; vendor-advisory, x_refsource_REDHAT) - https://access.redhat.com/security/cve/CVE-2023-7008 (CNA: redhat; vdb-entry, x_refsource_REDHAT) - https://bugzilla.redhat.com/show_bug.cgi?id=2222261 (CNA: redhat) - https://bugzilla.redhat.com/show_bug.cgi?id=2222672 (CNA: redhat; issue-tracking, x_refsource_REDHAT) - https://github.com/systemd/systemd/issues/25676 (CNA: redhat) - https://access.redhat.com/errata/RHSA-2024:2463 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred) - https://access.redhat.com/errata/RHSA-2024:3203 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred) - https://access.redhat.com/security/cve/CVE-2023-7008 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred) - https://bugzilla.redhat.com/show_bug.cgi?id=2222261 (ADP: CVE; x_transferred) - https://bugzilla.redhat.com/show_bug.cgi?id=2222672 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred) - https://github.com/systemd/systemd/issues/25676 (ADP: CVE; x_transferred) - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4GMDEG5PKONWNHOEYSUDRT6JEOISRMN2/ (ADP: CVE; x_transferred) - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHNBXGKJWISJETTTDTZKTBFIBJUOSLKL/ (ADP: CVE; x_transferred) - https://security.netapp.com/advisory/ntap-20241122-0004/ (ADP: CVE) - https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html (ADP: CVE) - https://cert-portal.siemens.com/productcert/html/ssa-794697.html (ADP: siemens-SADP) - https://access.redhat.com/errata/RHSA-2024:2463 (secalert@redhat.com) - https://access.redhat.com/errata/RHSA-2024:3203 (secalert@redhat.com) - https://access.redhat.com/security/cve/CVE-2023-7008 (secalert@redhat.com; Vendor Advisory) - https://bugzilla.redhat.com/show_bug.cgi?id=2222261 (secalert@redhat.com; Issue Tracking) - https://bugzilla.redhat.com/show_bug.cgi?id=2222672 (secalert@redhat.com; Issue Tracking) - https://github.com/systemd/systemd/issues/25676 (secalert@redhat.com; Issue Tracking) - https://access.redhat.com/errata/RHSA-2024:2463 (af854a3a-2127-422b-91ae-364da2661108) - https://access.redhat.com/errata/RHSA-2024:3203 (af854a3a-2127-422b-91ae-364da2661108) - https://access.redhat.com/security/cve/CVE-2023-7008 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory) - https://bugzilla.redhat.com/show_bug.cgi?id=2222261 (af854a3a-2127-422b-91ae-364da2661108; Issue Tracking) - https://bugzilla.redhat.com/show_bug.cgi?id=2222672 (af854a3a-2127-422b-91ae-364da2661108; Issue Tracking) - https://github.com/systemd/systemd/issues/25676 (af854a3a-2127-422b-91ae-364da2661108; Issue Tracking) - https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html (af854a3a-2127-422b-91ae-364da2661108) - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4GMDEG5PKONWNHOEYSUDRT6JEOISRMN2/ (af854a3a-2127-422b-91ae-364da2661108) - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHNBXGKJWISJETTTDTZKTBFIBJUOSLKL/ (af854a3a-2127-422b-91ae-364da2661108) - https://security.netapp.com/advisory/ntap-20241122-0004/ (af854a3a-2127-422b-91ae-364da2661108) - https://cert-portal.siemens.com/productcert/html/ssa-794697.html (0b142b55-0307-4c5a-b3c9-f314f3fb7c5e) ## Provenance - CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2023-7008; retrieved 2026-11-02; source updated 2026-11-02 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-7008; retrieved 2026-11-03; source updated 2026-11-02 - FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2023-7008; retrieved 2026-11-02; source updated Not reported Revision: 6428dd0be8cb936da898c5c5f778df422d434f546665c911fe8fe5fae453c046 Canonical: https://y2.dev/cve/CVE-2023-7008 ## Agent and API access Public CVE pages, Markdown, and JSON are free to read without an account or API key. - Public catalog: https://y2.dev/cve/index.json. 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