CVE-2020-3374: cisco cisco sd-wan vmanage Improper Authorization
Vulnerability summary
CVE-2020-3374 is a critical (CVSS 9.9) Improper Authorization vulnerability in cisco cisco sd-wan vmanage. EPSS estimates a 1.92% chance of exploitation in the next 30 days, higher than 79.5% of scored vulnerabilities.
Timeline
- 31-07-2020PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization, enabling them to access sensitive information, modify the system configuration, or impact the availability of the affected system. The vulnerability is due to insufficient authorization checking on the affected system. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to gain privileges beyond what would normally be authorized for their configured user authorization level. The attacker may be able to access sensitive information, modify the system configuration, or impact the availability of the affected system.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST9.9CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
1.92%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.92% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-285Improper AuthorizationThe product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
- CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Affected systems
Cisco2 products
- cisco sd-wan vmanagen/a
- sd-wan≤ 18.3.0 | ≥ 18.4.0, < 18.4.5 | ≥ 19.2.0, < 19.2.2 | ≥ 19.3.0, < 20.1.1
1 vendor · 2 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uabvman-SYGzt8BvVendor AdvisoryX Refsource CISCO