CVE-2021-41157

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 76.7% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-10-26 13:35Z5 YR AGO

Last updated

2024-08-04 02:59Z2 YR AGO

Reserved

2021-09-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.1

Document digest

0a45561face8bcf0b80546e2fa632b84f0d3c49c5f2cca7727045ee12694b860

• github.comhttps://github.com/signalwire/freeswitch/security/advisories/GHSA-g7xg-7c54-rmpjx_refsource_CONFIRM
• github.comhttps://github.com/signalwire/freeswitch/commit/b21dd4e7f3a6f1d5f7be3ea500a319a5bc11db9ex_refsource_MISC
• github.comhttps://github.com/signalwire/freeswitch/releases/tag/v1.10.6x_refsource_MISC
• seclists.org20211026 [ES2021-08] FreeSWITCH does not authenticate SIP SUBSCRIBE requests by defaulthttp://seclists.org/fulldisclosure/2021/Oct/41mailing-listx_refsource_FULLDISC