No exploitation reportedFix available

CVE-2022-45873

No exploitation reported by the sources we read.

Published2022-11-23
WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.

Timeline

dates in UTC

2022-11-2323:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-45873?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-45873?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Systemd project systemd

Branch	Affected	Fixed in	Source
251.x	≥ 250, ≤ 251	no fix published	NVD
252.x	= 252	no fix published	NVD

Fedoraproject fedora

Branch	Affected	Fixed in	Source
36.x	= 36	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

systemdAlmaLinux:9all versions · fixed in 250-12.el9_1.3and 9 other packages

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-25
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.15.52025-04-25
NVDCVSS 3.15.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-4002025-04-25
NVDweakness (CWE)CWE-400read 2026-10-23
FIRST EPSSEPSS score0.3 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: 2022-11-23
Last Modified: 2026-10-14
NVD status: Modified

Frequently asked questions

What is CVE-2022-45873?

Is CVE-2022-45873 actively exploited?

Active exploitation of CVE-2022-45873 has not been confirmed. Its EPSS score was 0.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-45873?

CVE-2022-45873 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Running systemd? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database