CVE-2021-1483: medium-severity vulnerability in Cisco Catalyst SD-WAN Manager
Cisco SD-WAN vManage Software XML External Entity Vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.9%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/RL:X/RC:X/E:X
Affected products
Cisco · Cisco Catalyst SD-WAN ManagerRelated CVEs — Cisco Catalyst SD-WAN Manager
In the same product, most dangerous first.
CVE-2026-20182CRITICALCisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityEPSS 91.8%KEVCVE-2026-20127CRITICALCisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityEPSS 87.6%KEVCVE-2026-76504CRITICALCisco Catalyst SD-WAN Manager System Account Authorization Bypass VulnerabilityEPSS 38.9%KEVCVE-2026-20133MEDIUMCVE-2026-20133EPSS 35.3%KEVCVE-2026-20262MEDIUMCisco Catalyst SD-WAN Manager Arbitrary File Write VulnerabilityEPSS 29.1%KEVCVE-2026-20122MEDIUMCisco Catalyst SD-WAN Manager Arbitrary File Overwrite VulnerabilityEPSS 25.8%KEV
References
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-info-disclos-gGvm9Mfuhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-cmdinj-nRHKgfHXhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-xml-ext-entity-q6Z7uVUg