CVE-2026-45259

mediumpriority · track · 0EPSS 0.001 · 3 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.13% (3rd) EPSS

CVSS 6.5 · medium

Is it mine?

18 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

sigqueue(2) was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kern_sigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue(2) to send signals to any process it could signal following standard Unix permissions, bypassing the Capsicum sandbox restriction. A compromised sandboxed process could interfere with other processes, for example by sending SIGKILL or SIGSTOP. This could be any process running as the same user, or any process, for a superuser sandboxed process.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondaryexploitability 2 · impact 4

v3.16mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-266US

affected products (18)

Products and version ranges known to be affected.

FreeBSD Project FreeBSD OS <14.3all versionscert_bundDE
FreeBSD Project FreeBSD OS <14.4all versionscert_bundDE
FreeBSD Project FreeBSD OS <15.0all versionscert_bundDE
FreeBSD Project FreeBSD OS <15.1all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
FreeBSD Project FreeBSD OS< 14.3cert_bundDE
FreeBSD Project FreeBSD OS< 14.4cert_bundDE
FreeBSD Project FreeBSD OS< 15.0cert_bundDE
FreeBSD Project FreeBSD OS< 15.1cert_bundDE
FreeBSD FreeBSD14.3-RELEASE → p15enisa_euvdEU
FreeBSD FreeBSD14.4-RELEASE → p6enisa_euvdEU
FreeBSD FreeBSD15.0-RELEASE → p10enisa_euvdEU
freebsd freebsd= 14.3nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 14.4nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 15.0nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1871FreeBSD Project FreeBSD OS: Mehrere SchwachstellenDeutsch2026-06-09csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in FreeBSD Project FreeBSD OS ausnutzen, um erweiterte Rechte zu erlangen – möglicherweise sogar Administratorrechte –, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder andere, nicht näher definierte Angriffe durchzuführen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-06-27modified 2026-07-01

references (3)

External citations — patches, advisories, analysis.

scry

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