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CVE-2022-47516

25
FAUCET Score

CVE-2022-47516 is a denial-of-service vulnerability affecting drachtio-server versions prior to 0.8.20, stemming from a crafted UDP message that triggers a self-assertion failure in the libsofia-sip fork. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and no user interaction, leading to a daemon crash. While no active exploitation, public exploits, or Metasploit modules are currently available, and community discussion is minimal, organizations using affected versions should prioritize patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.8.20CPE matchmatch criteria
cpe:2.3:a:drachtio:drachtio-server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.65%
Probability of exploitation in next 30 days
EPSS Percentile
74.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0165 is in the 56th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / davehorton/sofia-sip/commit/13b2a135287caa2d67ac6cd5155626821e25b377
PatchThird Party Advisory
github.com / drachtio/drachtio-server/issues/244
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2023/02/msg00028.html
debian.org / security/2023/dsa-5410