CVE-2020-3476 json
Cisco IOS XE Software Arbitrary File Overwrite Vulnerability
published 2020-09-24 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24747
- cvss
- 4.4
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
A vulnerability in the CLI implementation of a specific command of Cisco IOS XE Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying host file system. The vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 4.4 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 3.6 | AV:L/AC:L/Au:N/C:N/I:P/A:P |
Affected products
- Cisco Cisco IOS XE Software
Classification
- Weakness
-
- CWE-552 Files or Directories Accessible to External Parties
- Technology feeds
References
Sources
- CVE List CVE-2020-3476
- NVD CVE-2020-3476
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