How severe is CVE-2019-20386?

CVE-2019-20386 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2019-20386 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20386?

CVE-2019-20386 primarily affects Systemd Project Systemd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20386?

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

When was CVE-2019-20386 published?

CVE-2019-20386 was published on 2020-01-21 and last updated on 2026-06-17.

CVE-2019-20386

CVE-2019-20386 is a low-severity vulnerability in Systemd Project Systemd with a CVSS 3.x base score of 2.4. 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-401.

Key facts

Severity: Low (CVSS 3.x base score 2.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Systemd Project Systemd
Published: 2020-01-21
Last modified: 2026-06-17

Description

An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigger command, a memory leak may occur.

Frequently asked questions

What is CVE-2019-20386?: An issue was discovered in button_open in login/logind-button.c in systemd before 243. When executing the udevadm trigger command, a memory leak may occur.
How severe is CVE-2019-20386?: CVE-2019-20386 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2019-20386 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20386?: CVE-2019-20386 primarily affects Systemd Project Systemd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20386?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20386 published?: CVE-2019-20386 was published on 2020-01-21 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*

More vulnerabilities in Systemd Project Systemd

CVE-2022-2526 — Critical (CVSS 9.8): A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and…
CVE-2018-21029 — Critical (CVSS 9.8): systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name…
CVE-2015-7510 — Critical (CVSS 9.8): Stack-based buffer overflow in the getpwnam and getgrnam functions of the NSS module nss-mymachines in systemd.
CVE-2017-1000082 — Critical (CVSS 9.8): systemd v233 and earlier fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the…
CVE-2018-15688 — High (CVSS 8.8): A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory…
CVE-2023-26604 — High (CVSS 7.8): systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible…

All CVEs affecting Systemd Project Systemd →

Other CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities

CVE-2022-0742 — Critical (CVSS 9.1): Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go…
CVE-2024-25450 — High (CVSS 8.8): imlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().
CVE-2023-33718 — High (CVSS 8.8): mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
CVE-2021-40633 — High (CVSS 8.8): A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of…
CVE-2021-3492 — High (CVSS 8.8): Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring…
CVE-2019-17340 — High (CVSS 8.8): An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain…

Browse all CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities →