VDB-391923 · Submit #878212 · CVE-2026-76014

BusyBox up to 1.30.1 FEATURE_WGET_TIMEOUT networking/wget.c -T null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.0	$0-$5k	1.72

Summaryinfo

A vulnerability was found in BusyBox up to 1.30.1. It has been rated as problematic. This issue affects some unknown processing of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. Performing a manipulation of the argument -T results in null pointer dereference. This vulnerability was named CVE-2026-76014. The attack needs to be approached locally. In addition, an exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic has been found in BusyBox up to 1.30.1. This affects an unknown function of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. The manipulation of the argument -T with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-76014. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept.

Applying the patch 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

BusyBox

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff

Timelineinfo

08/18/2026 Advisory disclosed
08/18/2026 +0 days VulDB entry created
08/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 124
Status: Confirmed

CVE: CVE-2026-76014 (🔒)
GCVE (CVE): GCVE-0-2026-76014
GCVE (VulDB): GCVE-100-391923
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/18/2026 21:07
Changes: 08/18/2026 21:07 (60)
Complete: 🔍
Submitter: yuxin_wang
Cache ID: 216::103

Submitinfo

Accepted

Submit #878212: BusyBox 1.30.1 NULL Pointer Dereference (by yuxin_wang)