Is CVE-2019-6454 being actively exploited?

CVE-2019-6454 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-6454?

CVE-2019-6454 has a CVSS 3.1 base score of 5.5 (MEDIUM).

CVE-2019-6454

MEDIUM · CVSS 5.5EPSS 2.0%EU EUVD

An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).

Key facts

CVSS score: 5.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-787
EPSS score: 2.0% (81th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-16014)
Published: March 21, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-16014 in the EU Vulnerability Database. Last updated in EUVD on August 4, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
fedoraproject / fedora
mcafee / web gateway
netapp / active iq performance analytics services
opensuse / leap
redhat / enterprise linux
redhat / enterprise linux compute node eus
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux for ibm z systems eus
redhat / enterprise linux for ibm z systems eus
redhat / enterprise linux for ibm z systems eus
redhat / enterprise linux for ibm z systems eus
redhat / enterprise linux for ibm z systems eus
redhat / enterprise linux for power big endian eus
redhat / enterprise linux for power little endian
redhat / enterprise linux for power little endian eus
redhat / enterprise linux for power little endian eus
redhat / enterprise linux for power little endian eus
redhat / enterprise linux for power little endian eus
redhat / enterprise linux for power little endian eus
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server eus
redhat / enterprise linux server for power little endian update services for sap solutions
redhat / enterprise linux server for power little endian update services for sap solutions
redhat / enterprise linux server for power little endian update services for sap solutions
redhat / enterprise linux server for power little endian update services for sap solutions
redhat / enterprise linux server for power little endian update services for sap solutions
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server update services for sap solutions
redhat / enterprise linux server update services for sap solutions
redhat / enterprise linux server update services for sap solutions
redhat / enterprise linux server update services for sap solutions

and 3 more…

Certified products that may be affected

27 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat, Inc. - FIPS 140 5513 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, LLC - FIPS 140 5461 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5089 - active
Red Hat Enterprise Linux 8 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 4642 - historical
Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat®, Inc. - FIPS 140 4458 - historical

See all 27 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html(Mailing List, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2019/02/18/3(Mailing List, Patch, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2019/02/19/1(Mailing List, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2021/07/20/2(Exploit, Mailing List, Third Party Advisory)
http://www.securityfocus.com/bid/107081(Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHSA-2019:0368(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0990(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:1322(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:1502(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:2805(Third Party Advisory)
https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bus/bus-objects.c(Patch, Third Party Advisory)
https://kc.mcafee.com/corporate/index?page=content&id=SB10278(Patch, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html(Mailing List, Third Party Advisory)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N67IOBOTDOMVNQJ5QRU2MXLEECXPGNVJ/
https://security.netapp.com/advisory/ntap-20190327-0004/(Third Party Advisory)
https://usn.ubuntu.com/3891-1/(Third Party Advisory)
https://www.debian.org/security/2019/dsa-4393(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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