How severe is CVE-2019-15876?

CVE-2019-15876 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-15876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15876?

CVE-2019-15876 primarily affects Freebsd. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-15876?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-15876 published?

CVE-2019-15876 was published on 2020-04-28 and last updated on 2026-06-17.

CVE-2019-15876

CVE-2019-15876 is a medium-severity vulnerability in Freebsd with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Freebsd
Published: 2020-04-28
Last modified: 2026-06-17

Description

In FreeBSD 12.1-STABLE before r356089, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r356090, and 11.3-RELEASE before 11.3-RELEASE-p7, driver specific ioctl command handlers in the oce network driver failed to check whether the caller has sufficient privileges allowing unprivileged users to send passthrough commands to the device firmware.

Frequently asked questions

What is CVE-2019-15876?: In FreeBSD 12.1-STABLE before r356089, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r356090, and 11.3-RELEASE before 11.3-RELEASE-p7, driver specific ioctl command handlers in the oce network driver failed to check whether the caller has sufficient privileges allowing unprivileged users to send passthrough commands to the device firmware.
How severe is CVE-2019-15876?: CVE-2019-15876 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-15876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15876?: CVE-2019-15876 primarily affects Freebsd. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-15876?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15876 published?: CVE-2019-15876 was published on 2020-04-28 and last updated on 2026-06-17.

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:05.if_oce_ioctl.asc

Affected products (10)

cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*

More vulnerabilities in Freebsd

CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2018-17160 — Critical (CVSS 10.0): In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models…
CVE-2014-3954 — Critical (CVSS 10.0): Stack-based buffer overflow in rtsold in FreeBSD 9.1 through 10.1-RC2 allows remote attackers to cause a denial of…
CVE-2011-4862 — Critical (CVSS 10.0): Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka…
CVE-2006-4304 — Critical (CVSS 10.0): Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and…
CVE-2006-0226 — Critical (CVSS 10.0): Integer overflow in IEEE 802.11 network subsystem (ieee80211_ioctl.c) in FreeBSD before 6.0-STABLE, while scanning for…

All CVEs affecting Freebsd →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…
CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.

Browse all CWE-862 (Missing Authorization) vulnerabilities →