CVE-2026-76014: NULL Pointer Dereference in BusyBox
CVE-2026-76014 is a medium severity vulnerability in BusyBox up to versions 1.30.0 and 1.30.1. It involves a NULL pointer dereference in the FEATURE_WGET_TIMEOUT handler within the networking/wget.c component. The issue arises from improper handling of the -T argument, which can cause a crash. Local access with low privileges is required to exploit this vulnerability. A patch identified by commit 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff is available to fix the issue.
AI Analysis
Technical Summary
This vulnerability in BusyBox affects the FEATURE_WGET_TIMEOUT handler in the networking/wget.c file. Manipulating the -T argument leads to a NULL pointer dereference, causing the program to crash. The flaw requires local access with low privileges and does not require user interaction or elevated privileges. The vulnerability has been publicly disclosed, and a patch commit is available to remediate the issue.
Potential Impact
Successful exploitation results in a NULL pointer dereference causing a denial of service (application crash). The vulnerability requires local access with low privileges and does not allow privilege escalation or remote code execution. There is no indication of remote exploitation or data compromise.
Mitigation Recommendations
A patch identified by commit 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff should be applied to BusyBox versions 1.30.0 and 1.30.1 to remediate this issue. Applying this official fix will prevent exploitation of the NULL pointer dereference vulnerability.
CVE-2026-76014: NULL Pointer Dereference in BusyBox
Description
CVE-2026-76014 is a medium severity vulnerability in BusyBox up to versions 1.30.0 and 1.30.1. It involves a NULL pointer dereference in the FEATURE_WGET_TIMEOUT handler within the networking/wget.c component. The issue arises from improper handling of the -T argument, which can cause a crash. Local access with low privileges is required to exploit this vulnerability. A patch identified by commit 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff is available to fix the issue.
CVSS v4.0
Score 4.8medium
Affected software
BusyBox
pkg:github/mirror/busyboxcpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in BusyBox affects the FEATURE_WGET_TIMEOUT handler in the networking/wget.c file. Manipulating the -T argument leads to a NULL pointer dereference, causing the program to crash. The flaw requires local access with low privileges and does not require user interaction or elevated privileges. The vulnerability has been publicly disclosed, and a patch commit is available to remediate the issue.
Potential Impact
Successful exploitation results in a NULL pointer dereference causing a denial of service (application crash). The vulnerability requires local access with low privileges and does not allow privilege escalation or remote code execution. There is no indication of remote exploitation or data compromise.
Mitigation Recommendations
A patch identified by commit 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff should be applied to BusyBox versions 1.30.0 and 1.30.1 to remediate this issue. Applying this official fix will prevent exploitation of the NULL pointer dereference vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-18T19:02:48.220Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8520d9c6e8be0332180a8b
Added to database: 08/19/2026, 03:19:53 UTC
Last enriched: 09/11/2026, 10:04:30 UTC
Last updated: 10/02/2026, 07:26:34 UTC
Views: 75
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