7.5

CVE-2023-3596: rockwell automation 1756-en4tr series a Out-of-bounds Write

CVSS: 7.5v3.1HighModified
Published 12-07-2023Last modified 07-11-2024
Open JSON

Vulnerability summary

CVE-2023-3596 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in rockwell automation 1756-en4tr series a. EPSS estimates a 3.71% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
3.71%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-07-2023
    PublishedVulnerability first disclosed.
  2. 07-11-2024
    Last modifiedVulnerability information updated.

Description

Where this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

3.71%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

+0.03 pp

From 3.67% on 21-09-2026

21-09-202621-10-2026
EPSS score
3.71%

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

Rockwell automation3 products
Rockwellautomation3 products

2 vendors · 6 products

References

1 links