Auth bypass in Freeswitch
CVE-2021-41157
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. By default, SIP requests of the type SUBSCRIBE are not a…
Vulnerability class: Broken Authentication
EPSS: 0.017 (74.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Freeswitch
- Signalwire Freeswitch — versions < 1.10.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41157?
- CVE-2021-41157 is a medium-severity vulnerability in Freeswitch, classified under Improper Authentication. CVSS score: 5.3/10. Published 2021-10-26.
- How severe is CVE-2021-41157?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-41157 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.