CVE-2021-1483

MEDIUM

Published Nov 15, 2024 Modified Aug 4, 2025 CWE-611

Description

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected system. This vulnerability is due to improper handling of XML External Entity (XXE) entries when the affected software parses certain XML files. An attacker could exploit this vulnerability by persuading a user to import a crafted XML file with malicious entries. A successful exploit could allow the attacker to read and write files within the affected application.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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CVSS v3.1 Score

6.4

MEDIUM

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

Weakness Type (CWE)

CWE-611 CWE-611

Affected Products

Vendor	Product	Versions
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All
cisco	catalyst_sd-wan_manager	All

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-xml-ext-entity-q6Z7uVUg

Other References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-cmdinj-nRHKgfHX https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-info-disclos-gGvm9Mfu

Frequently Asked Questions

What is CVE-2021-1483? +

How severe is CVE-2021-1483? +

CVE-2021-1483 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-1483? +

CVE-2021-1483 affects products from cisco, specifically: catalyst_sd-wan_manager. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-1483? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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