NULL pointer dereference in Busybox
CVE-2026-76014
A vulnerability has been found in BusyBox up to 1.30.1. This vulnerability affects unknown code of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. Such manipulation of the argument -T leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The name of the patch is 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff. A patch should be applied to remediate this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (4.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Busybox — versions 1.30.0, 1.30.1
Weakness classification (CWE)
References
- gist.github.com/wyxstarry/5c199ec824928c5ae5816aaecbc6df03 (exploit)
- github.com/mirror/busybox/commit/83a40bf7a93c8ac093d33ab452222dd5b9eb57ff (patch)
- github.com/mirror/busybox/issues/124 (issue-tracking)
- vuldb.com/cve/CVE-2026-76014 (third-party-advisory)
- vuldb.com/submit/878212 (third-party-advisory)
- vuldb.com/vuln/391923 (technical-description, vdb-entry)
- vuldb.com/vuln/391923/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-76014?
- CVE-2026-76014 is a low-severity vulnerability in Busybox, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2026-08-19.
- How severe is CVE-2026-76014?
- Low severity. CVSS v3 base score is 3.3 out of 10.