NULL pointer dereference in Callback technologies CBFS Filter
Priority MEDIUM 58CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00342 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Callback technologies | CBFS Filter | 20.0.8317 | — | No fix listed | CNA |
- CBFS Filter VendorCallback technologies Affected 20.0.8317 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:callback:cbfs_filter:20.0.8317:*:*:*:*:*:*:* | 20.0.8317 | Vulnerable | Callback technologies |
- cpe:2.3:a:callback:cbfs_filter:20.0.8317:*:*:*:*:*:*:* Versions 20.0.8317 Vulnerable ·Callback technologies
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-43590
- 2026-10-03 Alias added: GHSA-f3q8-93gp-933x
References
More Callback technologies Cbfs Filter vulnerabilities
- TI-2022-21357 NULL pointer dereference in Callback technologies CBFS Filter CVSS 3.1MEDIUM 5.5
- TI-2022-21356 NULL pointer dereference in Callback technologies CBFS Filter CVSS 3.1MEDIUM 5.5
Sources
- CVE-2022-43590 · CVE Program
- CVE-2022-43590 · NVD
- FIRST EPSS
- GHSA-f3q8-93gp-933x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences