How severe is CVE-2021-32286?

CVE-2021-32286 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-2021-32286 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32286?

CVE-2021-32286 affects Hcxtools Project Hcxtoold. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32286?

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-2021-32286 published?

CVE-2021-32286 was published on 2021-09-20 and last updated on 2026-06-17.

CVE-2021-32286

CVE-2021-32286 is a high-severity vulnerability in Hcxtools Project Hcxtoold 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)
CVSS v2: 6.8
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Hcxtools Project Hcxtoold
Published: 2021-09-20
Last modified: 2026-06-17

Description

An issue was discovered in hcxtools through 6.1.6. A global-buffer-overflow exists in the function pcapngoptionwalk located in hcxpcapngtool.c. It allows an attacker to cause code Execution.

Frequently asked questions

What is CVE-2021-32286?: An issue was discovered in hcxtools through 6.1.6. A global-buffer-overflow exists in the function pcapngoptionwalk located in hcxpcapngtool.c. It allows an attacker to cause code Execution.
How severe is CVE-2021-32286?: CVE-2021-32286 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-2021-32286 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32286?: CVE-2021-32286 affects Hcxtools Project Hcxtoold. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32286?: 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-2021-32286 published?: CVE-2021-32286 was published on 2021-09-20 and last updated on 2026-06-17.

References

https://github.com/ZerBea/hcxtools/issues/155

Affected products (1)

cpe:2.3:a:hcxtools_project:hcxtoold:*:*:*:*:*:*:*:*

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