CVE-2021-1305: cisco cisco sd-wan vmanage Improper Input Validation
Vulnerability summary
CVE-2021-1305 is a high (CVSS 8.8) Improper Input Validation vulnerability in cisco cisco sd-wan vmanage. EPSS estimates a 1.31% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities.
Timeline
- 20-01-2021PublishedVulnerability first disclosed.
- 12-11-2024Last modifiedVulnerability information updated.
Description
Multiple vulnerabilities in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization and modify the configuration of an affected system, gain access to sensitive information, and view information that they are not authorized to access. For more information about these vulnerabilities, see the Details section of this advisory.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
EPSS trend
Probability
1.31%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
+0.02 pp
From 1.30% 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-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- 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
Cisco4 products
- cisco sd-wan vmanagen/a
- ios_xe_sd-wanna
- sd-wan< 20.3.2 | 20.4.0
- sd-wan_vbond_orchestratorna
1 vendor · 4 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-abyp-TnGFHrSVendor AdvisoryX Refsource CISCO