CVE-2020-26064 XML external entity in Cisco SD-WAN vManage
Authenticated attackers can read and write files via XXE in Cisco SD-WAN vManage by tricking users into importing malicious XML.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-26064?
CVE-2020-26064 is a medium-severity vulnerability in Cisco Catalyst Sd-Wan Manager, published on 4 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing 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.
Weakness: CWE-611
Which versions are affected by CVE-2020-26064?
It affects 1 product.
Products include Cisco Catalyst Sd-Wan Manager.
How do I fix CVE-2020-26064?
No fix has been published for CVE-2020-26064 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-26064 being exploited?
There is no known exploitation of CVE-2020-26064 in the wild and no public exploit code.
Other vulnerabilities in Cisco Catalyst Sd-Wan Manager
- CVE-2026-20182 Cisco Catalyst SD-WAN Controller Authentication Bypass
- CVE-2026-20127 Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass
- CVE-2026-76504 Cisco Catalyst SD-WAN Manager Hex Encoding
- CVE-2026-20245 Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output
- CVE-2022-20775 Cisco SD-WAN Path Traversal
Sources
Also known as GHSA-rvrv-6xrw-v985.