Cyber Resilience

CVE-2021-36513

HighPublic PoC

Published: 18 October 2021

Published
18 October 2021
Modified
21 November 2024
KEV Added
—
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:H/I:N/A:N
EPSS Score 0.0048 65.4th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-36513 is a high-severity Missing Initialization of Resource (CWE-909) vulnerability in Signalwire Freeswitch. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 34.6% 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 function sofia_handle_sip_i_notify in sofia.c in SignalWire freeswitch before 1.10.6, may allow attackers to view sensitive information due to an uninitialized value.

CWE(s)
CWE-909

Related Threats

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

Affected Assets

signalwire
freeswitch
≤ 1.10.6

Mitigating Controls

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

References