7.7

CVE-2019-1884: cisco asyncos Improper Input Validation

CVSS: 7.7v3.0HighModified
Published 04-07-2019Last modified 21-11-2024
Open JSON

Vulnerability summary

CVE-2019-1884 is a high (CVSS 7.7) Improper Input Validation vulnerability in cisco asyncos. EPSS estimates a 1.51% chance of exploitation in the next 30 days, higher than 74.1% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.7/10
010
High · v3.0 (CVE.org)
EPSS score
1.51%
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. 04-07-2019
    PublishedVulnerability first disclosed.
  2. 21-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.51%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.51% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.51%

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

Cisco3 products

1 vendor · 3 products

References

1 links