How severe is CVE-2022-43590?

CVE-2022-43590 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-43590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43590?

CVE-2022-43590 affects Callback Cbfs Filter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-43590?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-43590 published?

CVE-2022-43590 was published on 2022-11-28 and last updated on 2026-06-17.

CVE-2022-43590

CVE-2022-43590 is a medium-severity vulnerability in Callback Cbfs Filter with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Callback Cbfs Filter
Published: 2022-11-28
Last modified: 2026-06-17

Description

A null pointer dereference vulnerability exists in the handle_ioctl_0x830a0_systembuffer functionality of Callback technologies CBFS Filter 20.0.8317. A specially crafted I/O request packet (IRP) can lead to denial of service. An attacker can issue an ioctl to trigger this vulnerability.

Frequently asked questions

What is CVE-2022-43590?: A null pointer dereference vulnerability exists in the handle_ioctl_0x830a0_systembuffer functionality of Callback technologies CBFS Filter 20.0.8317. A specially crafted I/O request packet (IRP) can lead to denial of service. An attacker can issue an ioctl to trigger this vulnerability.
How severe is CVE-2022-43590?: CVE-2022-43590 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-43590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43590?: CVE-2022-43590 affects Callback Cbfs Filter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-43590?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-43590 published?: CVE-2022-43590 was published on 2022-11-28 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1649

Affected products (1)

cpe:2.3:a:callback:cbfs_filter:20.0.8317:*:*:*:*:*:*:*

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