5.3

CVE-2019-1844: cisco cisco email security appliance (esa) Improper Input Validation

CVSS: 5.3v3.0MediumModified
Published 03-05-2019Last modified 19-11-2024

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.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.0 (CVE.org)
EPSS score
1.70%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-05-2019
    PublishedVulnerability first disclosed.
  2. 19-11-2024
    Last 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

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

21-09-202621-10-2026
EPSS score
1.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products

1 vendor · 2 products

References

2 links