Cyber Resilience

CVE-2021-1491

Medium

Published: 15 November 2024

Published
15 November 2024
Modified
04 August 2025
KEV Added
Patch
CVSS Score v3 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0035 58.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-1491 is a medium-severity Link Following (CWE-59) vulnerability in Cisco Catalyst Sd-Wan Manager. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 41.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to read arbitrary files on the underlying file system of the device. This vulnerability is due to insufficient file scope limiting. An attacker…

more

could exploit this vulnerability by creating a specific file reference on the file system and then accessing it through the web-based management interface. A successful exploit could allow the attacker to read arbitrary files from the file system of the underlying operating system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cisco
catalyst sd-wan manager
17.2.10, 17.2.4, 17.2.5, 17.2.6, 17.2.7

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References