CVE-2023-5978

highpriority · track · 30EPSS 0.005 · 43 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.51% (43rd) EPSS

CVSS 7.5 · high

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

In versions of FreeBSD 13-RELEASE before 13-RELEASE-p5, under certain circumstances the cap_net libcasper(3) service incorrectly validates that updated constraints are strictly subsets of the active constraints. When only a list of resolvable domain names was specified without setting any other limitations, an application could submit a new list of domains including include entries not previously listed. This could permit the application to resolve domain names that were previously restricted.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-269US

affected products (9)

Products and version ranges known to be affected.

FreeBSD Project FreeBSD OS < 12.4-RELEASE-p7all versionscert_bundDEcpe:/o:freebsd:freebsd:12.4-release-p7
FreeBSD Project FreeBSD OS < 12.4-STABLEall versionscert_bundDEcpe:/o:freebsd:freebsd:12.4-stable
FreeBSD FreeBSD13.2-RELEASE → p5enisa_euvdEU
FreeBSD Project FreeBSD13.0 → 13.2-STABLEfstec_bduRU
FreeBSD Project FreeBSD13.2-RELEASE → 13.2-RELEASE-p5fstec_bduRU
FreeBSD Project FreeBSD14 → 14.0-STABLEfstec_bduRU
FreeBSD Project FreeBSD14.0 → 14.0-RC4-p1fstec_bduRU
freebsd freebsd13.0 → 13.2nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 13.2nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2855FreeBSD Project FreeBSD OS: Mehrere SchwachstellenDeutsch2023-11-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen im FreeBSD Project FreeBSD OS ausnutzen, um beliebigen Code auszuführen, Dateien zu manipulieren oder einen unspezifischen Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-11-08modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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