Cyber Resilience

CVE-2021-1483

Medium

Published: 15 November 2024

Published
15 November 2024
Modified
04 August 2025
KEV Added
Patch
CVSS Score v3.1 6.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0027 50.9th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-1483 is a medium-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Cisco Catalyst Sd-Wan Manager. Its CVSS base score is 6.4 (Medium).

Operationally, ranked in the top 49.1% 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 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…

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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.

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

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-611

Penetration testing includes XML external entity payloads, detecting XXE vulnerabilities and enabling their mitigation.

addresses: CWE-611

Identifies XML external entity processing via monitoring of unusual file/network access or resource usage.

References