How severe is CVE-2022-0367?

CVE-2022-0367 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-0367 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-0367?

CVE-2022-0367 primarily affects Libmodbus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-0367?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-0367 published?

CVE-2022-0367 was published on 2022-08-29 and last updated on 2026-06-17.

CVE-2022-0367

CVE-2022-0367 is a high-severity vulnerability in Libmodbus with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Libmodbus
Published: 2022-08-29
Last modified: 2026-06-17

Description

A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c.

Frequently asked questions

What is CVE-2022-0367?: A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c.
How severe is CVE-2022-0367?: CVE-2022-0367 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-0367 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-0367?: CVE-2022-0367 primarily affects Libmodbus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-0367?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-0367 published?: CVE-2022-0367 was published on 2022-08-29 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:libmodbus:libmodbus:*:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

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