Auth bypass in Freeswitch
CVE-2021-37624
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.10.7, FreeSWITCH does not authenticat…
Vulnerability class: Broken Authentication
EPSS: 0.035 (87.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Freeswitch
- Signalwire Freeswitch — versions < 1.10.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security-advisories@github.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37624?
- CVE-2021-37624 is a high-severity vulnerability in Freeswitch, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-10-25.
- How severe is CVE-2021-37624?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-37624 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.