Quick answers
- Is CVE-2026-124743 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124743 being exploited in the wild.
- How severe is CVE-2026-124743?
- Medium severity, with a CVSS score of 5.5, published 11 November 2026.
- Which products and versions are affected?
- BusyBox.
- Is there a fix for CVE-2026-124743?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-124743 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-124743?
- Check whether you run BusyBox. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A divide-by-zero vulnerability exists in the volume_id HFS+ prober component of BusyBox when processing specially crafted filesystem metadata headers. The vulnerability requires local access to attach a storage device or supply a filesystem image; no privilege escalation or network access is needed. Exploitation causes an application crash (DoS) or heap over-read during filesystem probing operations, with no confidentiality or integrity impact.
Affected products
- BusyBox
Timeline
- 2026-11-11: disclosed