CVE-2022-47516

Name: CVE-2022-47516
Creator: NVD / NIST
Published: 2022-12-18T05:15:11.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.65%

Last modified Jun 17, 2026

CVE-2022-47516 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that leads to a failure of the libsofia-sip-ua/tport/tport.c self assertion.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.

Description

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that leads to a failure of the libsofia-sip-ua/tport/tport.c self assertion.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.65%

73.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Drachtio	Drachtio-Server	< 0.8.20

References

https://github.com/davehorton/sofia-sip/commit/13b2a135287caa2d67ac6cd5155626821e25b377Patch, Third Party Advisory
https://github.com/drachtio/drachtio-server/issues/244Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00028.html
https://www.debian.org/security/2023/dsa-5410
https://github.com/davehorton/sofia-sip/commit/13b2a135287caa2d67ac6cd5155626821e25b377Patch, Third Party Advisory
https://github.com/drachtio/drachtio-server/issues/244Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00028.html
https://www.debian.org/security/2023/dsa-5410

Timeline

Published: Dec 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-47516?

How severe is CVE-2022-47516?

CVE-2022-47516 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.

How do I fix CVE-2022-47516?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-47516?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST