Cyber Resilience

CVE-2022-47517

HighPublic PoC

Published: 18 December 2022

Published
18 December 2022
Modified
17 April 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0098 77.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-47517 is a high-severity Off-by-one Error (CWE-193) vulnerability in Drachtio Drachtio-Server. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 22.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one…

more

error.

CWE(s)
CWE-193

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

drachtio
drachtio-server
≤ 0.8.19

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References