What is CVE-2022-47515?

CVE-2022-47515 is a high-severity vulnerability in Drachtio Drachtio-Server, classified under Improper Null Termination. CVSS score: 7.5/10. Published 2022-12-18.

How severe is CVE-2022-47515?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Drachtio Drachtio-Server

CVE-2022-47515

An issue was discovered in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a long message in a TCP request that leads to std::length_error.

Published 2022-12-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Drachtio Drachtio-Server

Weakness classification (CWE)

CWE-170 — Improper Null Termination

References

github.com/drachtio/drachtio-server/issues/245 (Exploit, Third Party Advisory)
github.com/drachtio/drachtio-server/commit/4cf9fe2c420b86c16442215d449d40be777c… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-47515?: CVE-2022-47515 is a high-severity vulnerability in Drachtio Drachtio-Server, classified under Improper Null Termination. CVSS score: 7.5/10. Published 2022-12-18.
How severe is CVE-2022-47515?: High severity. CVSS v3 base score is 7.5 out of 10.