CVE-2019-1844: cisco cisco email security appliance (esa) Improper Input Validation
Vulnerability summary
CVE-2019-1844 is a medium (CVSS 5.3) Improper Input Validation vulnerability in cisco cisco email security appliance (esa). EPSS estimates a 1.70% chance of exploitation in the next 30 days, higher than 76.9% of scored vulnerabilities.
Timeline
- 03-05-2019PublishedVulnerability first disclosed.
- 19-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in certain attachment detection mechanisms of the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the filtering functionality of an affected device. The vulnerability is due to improper detection of certain content sent to an affected device. An attacker could exploit this vulnerability by sending certain file types without Content-Disposition information to an affected device. A successful exploit could allow an attacker to send messages that contain malicious content to users.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
1.70%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.70% on 21-09-2026
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, < 11.1.1-030
- email_security_appliance_firmware11.1.0-131
1 vendor · 2 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-esa-bypassVendor AdvisoryX Refsource CISCO