CVE-2020-3181: cisco cisco email security appliance (esa) Uncontrolled Resource Consumption
Vulnerability summary
CVE-2020-3181 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in cisco cisco email security appliance (esa). EPSS estimates a 1.56% chance of exploitation in the next 30 days, higher than 74.9% of scored vulnerabilities.
Timeline
- 04-03-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the malware detection functionality in Cisco Advanced Malware Protection (AMP) in Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated remote attacker to exhaust resources on an affected device. The vulnerability is due to insufficient control over system memory allocation. An attacker could exploit this vulnerability by sending a crafted email through the targeted device. A successful exploit could allow the attacker to cause an email attachment that contains malware to be delivered to a user and cause email processing delays.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS trend
Probability
1.56%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.56% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco2 products
- cisco email security appliance (esa)≥ unspecified, < n/a
- email_security_appliance_firmware< 13.0.0
1 vendor · 2 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-resource-exhaust-D7RQAhnDVendor AdvisoryX Refsource CISCO