CVE-2023-7008 | Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes

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.

Published: 2023-12-23 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-7008 is rated Moderate Risk (46.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.48%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-7008

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-17 0.44% 0.48% +0.04%
2 2026-03-30 0.45% 0.44% -0.01%
3 2026-03-21 — 0.45% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-7008

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 [email protected]
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 [email protected]

Weakness enumeration for CVE-2023-7008

OS Trackers for CVE-2023-7008

vendor priority summary link
debian not yet assigned CVE-2023-7008 not yet assigned priority: Debian including 1 source packages (systemd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-7008
redhat medium — https://access.redhat.com/security/cve/CVE-2023-7008
suse medium CVE-2023-7008 severity moderate: SUSE including 413 source package names (11-27.10:libsystemd0-249.17-150400.8.43.1, 13.2-3.5.33:libsystemd0-249.17-150400.8.43.1, …), 1434 product×package rows across 194 product lines (Container bci/bci-init, Container bci/nodejs, … (194 product lines)): Fixed 865, Known Not Affected 338, Known Affected 231. https://www.suse.com/security/cve/CVE-2023-7008/
ubuntu low CVE-2023-7008 low priority: Ubuntu including 1 source packages (systemd), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 4, released 4, ignored 2, needed 2. https://ubuntu.com/security/CVE-2023-7008

Affected software / configurations for CVE-2023-7008

Vendor Product Version Raw CPE
systemd_project systemd 25 cpe:2.3:a:systemd_project:systemd:25:*:*:*:*:*:*:*

References for CVE-2023-7008

cvelogic Threat Intelligence