What is CVE-2021-1437?

CVE-2021-1437 is a high-severity vulnerability in Cisco 1100 Integrated Services Router, classified under Permission Issues. CVSS score: 7.5/10. Published 2021-03-24.

How severe is CVE-2021-1437?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Cisco 1100 Integrated Services Router

CVE-2021-1437

A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to obtain confidential information from an affected device. This vulnerability is due to an unrestricted Trivial File Transfer Protocol (TFTP) configuration. An attacker could exploit this vulnerability by sending a specific TFTP request to an affected device. A successful exploit could allow the attacker to download any file from the filesystem of the affected access point (AP).

EPSS: 0.015 (72.4th 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:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-275 — Permission Issues

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1437?: CVE-2021-1437 is a high-severity vulnerability in Cisco 1100 Integrated Services Router, classified under Permission Issues. CVSS score: 7.5/10. Published 2021-03-24.
How severe is CVE-2021-1437?: High severity. CVSS v3 base score is 7.5 out of 10.