What is CVE-2022-45474?

CVE-2022-45474 is a critical-severity vulnerability in Drachtio Drachtio-Server, classified under Use After Free. CVSS score: 9.8/10. Published 2022-11-18.

How severe is CVE-2022-45474?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Drachtio Drachtio-Server

CVE-2022-45474

drachtio-server 0.8.18 has a request-handler.cpp event_cb use-after-free for any request.

Vulnerability class: Use-After-Free

Published 2022-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 61st percentile — 61.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Drachtio Drachtio-Server — versions 0.8.18

Weakness classification (CWE)

CWE-416 — Use After Free

References

github.com/drachtio/drachtio-server/issues/240 (Exploit, Third Party Advisory, Issue Tracking)
github.com/drachtio/drachtio-server/commit/860f025468feb31c43227153d8fb3f34210a… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-45474?: CVE-2022-45474 is a critical-severity vulnerability in Drachtio Drachtio-Server, classified under Use After Free. CVSS score: 9.8/10. Published 2022-11-18.
How severe is CVE-2022-45474?: Critical severity. CVSS v3 base score is 9.8 out of 10.