CVE-2020-27128 json
Cisco SD-WAN vManage Software Arbitrary File Creation Vulnerability
published 2020-11-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19652
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 58.5%
- EPSS 58.5% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 0
- none known
Summary
A vulnerability in the application data endpoints of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to write arbitrary files to an affected system. The vulnerability is due to improper validation of requests to APIs. An attacker could exploit this vulnerability by sending malicious requests to an API within the affected application. A successful exploit could allow the attacker to conduct directory traversal attacks and write files to an arbitrary location on the targeted system.
Patch / fix
- cisco sd-wan 20.3.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
58.55% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- Cisco Cisco SD-WAN vManage
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
Sources
- CVE List CVE-2020-27128
- NVD CVE-2020-27128
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