What is CVE-2022-45909?

CVE-2022-45909 is a critical-severity vulnerability in Drachtio Drachtio-Server, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-11-26.

How severe is CVE-2022-45909?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in Drachtio Drachtio-Server

CVE-2022-45909

drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request.

Vulnerability class: Buffer Overflow

Published 2022-11-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% 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: 0.011 · change: +0.001

Affected products

Drachtio Drachtio-Server

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/drachtio/drachtio-server/commit/a63d01854987d9fd846cdc9265af38ee9eb7… (Patch, Third Party Advisory)
github.com/drachtio/drachtio-server/compare/v0.8.18...v0.8.19 (Patch, Third Party Advisory)
github.com/drachtio/drachtio-server/pull/238 (Third Party Advisory)

Frequently asked questions

What is CVE-2022-45909?: CVE-2022-45909 is a critical-severity vulnerability in Drachtio Drachtio-Server, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-11-26.
How severe is CVE-2022-45909?: Critical severity. CVSS v3 base score is 9.1 out of 10.