TI-2021-19478 Aliases CVE-2021-43610 GHSA-68x6-p7v3-xxqm

Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid…

LOW 35CWE-444Published 2021-11-12 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.

Why it matters now

EPSS 0.01191 68th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:linphone:belle-sip::::::::	before 5.0.20	Vulnerable	Linphone

cpe:2.3:a:linphone:belle-sip:*:*:*:*:*:*:*:* Versions before 5.0.20 Vulnerable ·Linphone

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-43610
2026-10-03 Alias added: GHSA-68x6-p7v3-xxqm

References

Patch 2

TI-2021-19479 Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via " \ " in… CVSS 3.1HIGH 7.5
TI-2021-12650 Belledonne Belle-sip before 4.5.20, as used in Linphone and other products, can crash via… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences