What is CVE-2022-1068?

CVE-2022-1068 is a medium-severity vulnerability in Modbus Tools Slave, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2022-04-01.

How severe is CVE-2022-1068?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2022-1068 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Modbus Tools Slave

CVE-2022-1068

Modbus Tools Modbus Slave (versions 7.4.2 and prior) is vulnerable to a stack-based buffer overflow in the registration field. This may cause the program to crash when a long character string is used.

Vulnerability class: Buffer Overflow

Published 2022-04-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Modbus Tools Slave — versions unspecified
Modbustools Modbus Slave

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.cisa.gov/uscert/ics/advisories/icsa-22-088-04 (US Government Resource, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-1068?: CVE-2022-1068 is a medium-severity vulnerability in Modbus Tools Slave, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2022-04-01.
How severe is CVE-2022-1068?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-1068 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.