7.5

CVE-2020-3444: cisco cisco sd-wan solution Improper Input Validation

CVSS: 7.5v3.1HighModified
Published 06-11-2020Last modified 13-11-2024
Open JSON

Vulnerability summary

CVE-2020-3444 is a high (CVSS 7.5) Improper Input Validation vulnerability in cisco cisco sd-wan solution. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.49%
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. 06-11-2020
    PublishedVulnerability first disclosed.
  2. 13-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the packet filtering features of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a targeted device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

1.49%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.49% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.49%

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

1 links