CVE-2020-26064
A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access…
- Published
- Updated
- Reserved
- Assigned by
- cisco
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.
Timeline
ID reserved
By cisco
- 3 years later
· 3 years later
Published
- 12 months later
· 12 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.74% · top 45% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
- affected 17.2.6
- affected 17.2.7
- affected 17.2.8
- affected 17.2.9
- affected 17.2.10
- affected 17.2.4
- affected 17.2.5
- affected 18.3.1.1
- affected 18.3.3.1
- affected 18.3.3
- affected 18.3.4
- affected 18.3.5
- affected 18.3.7
- affected 18.3.8
- affected 18.3.6.1
- affected 18.3.1
- affected 18.3.0
- affected 18.4.0.1
- affected 18.4.3
- affected 18.4.302
- affected 18.4.303
- affected 18.4.4
- affected 18.4.5
- affected 18.4.0
- affected 18.4.1
- affected 19.2.0
- affected 19.2.097
- affected 19.2.099
- affected 19.2.1
- affected 19.2.2
- affected 19.2.3
- affected 19.2.31
- affected 19.2.929
- affected 20.1.1.1
- affected 20.1.12
- affected 20.1.1
- affected 19.3.0
- affected 19.1.0
- affected 18.2.0
- affected 20.3.1
What to do
Exploitation: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
References (1)
- cisco-sa-vmanx2-KpFVSUc (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-26064)Record last updated .