What is CVE-2021-21966?

CVE-2021-21966 is a medium-severity vulnerability in Ti Cc3100, classified under CWE-457. CVSS score: 5.3/10. Published 2022-02-16.

How severe is CVE-2021-21966?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-21966 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ti Cc3100

CVE-2021-21966

An information disclosure vulnerability exists in the HTTP Server /ping.html functionality of Texas Instruments CC3200 SimpleLink Solution NWP 2.9.0.0. A specially-crafted HTTP request can lead to an uninitialized read. An attacker can send an HTTP request to trigger this vulnerability.

EPSS: 0.014 (69.4th 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

Weakness classification (CWE)

Public proof-of-concept exploits

muurk/smartap-revival

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
nvd@nist.gov (Vendor Advisory)

Frequently asked questions

What is CVE-2021-21966?: CVE-2021-21966 is a medium-severity vulnerability in Ti Cc3100, classified under CWE-457. CVSS score: 5.3/10. Published 2022-02-16.
How severe is CVE-2021-21966?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-21966 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.