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CVE-2026-76014

🗓️ 19 Aug 2026 03:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve🔗 ubuntu.com👁 26 Views

BusyBox up to 1.30.1 has null pointer dereference in FEATURE_WGET_TIMEOUT via -T argument.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
cve
CVE		CVE-2026-76014
19 Aug 202602:45
–cve
cvelist
Cvelist		CVE-2026-76014 BusyBox FEATURE_WGET_TIMEOUT wget.c null pointer dereference
19 Aug 202602:45
–cvelist
githubexploit
GithubExploit		cve
25 Sep 202512:50
–githubexploit
debiancve
Debian CVE		CVE-2026-76014
19 Aug 202602:45
–debiancve
euvd
EUVD		EUVD-2026-62225
19 Aug 202602:45
–euvd
mend
Mend		CVE-2026-76014
19 Aug 202602:45
–mend
nvd
NVD		CVE-2026-76014
19 Aug 202603:16
–nvd
osv_debian
osv_debian		DEBIAN-CVE-2026-76014
19 Aug 202603:16
–osv_debian
osv_echo
osv_echo		ECHO-1FCB-1955-3C69 NULL pointer write in the wget applet's -T/--timeout handling (networking/wget.c): getopt32() is handed NULL as the -T storage only when busybox is built with CONFIG_WGET but WITHOUT CONFIG_FEATURE_WGET_TIMEOUT ("IF_NOT_FEATURE_WGET_TIMEOUT(NULL)"). Every busybox Echo ships is built from Debian's own configs, where that combination never occurs: debian/config/pkg/deb and debian/config/pkg/static (busybox, busybox-static, busybox-syslogd, udhcpc, udhcpd) set CONFIG_FEATURE_WGET_TIMEOUT=y, so -T is stored in G.timeout_seconds, and debian/config/pkg/udeb does not build wget at all. Verified on 1:1.38.0-3: a build from debian/config/pkg/deb and Debian's busybox and busybox-static binaries answer "wget -T 5" and "wget --timeout 5" normally, while the same tree with only FEATURE_WGET_TIMEOUT turned off segfaults on "wget -T 5". The cited "patch" 83a40bf is a commit in a third-party fork, not in upstream busybox, and bundles unrelated applet changes. Debian rates the CVE unimportant ("crash in CLI tool, no security impact").
19 Aug 202622:59
–osv_echo
osv_oesa
osv_oesa		OESA-2026-3683 busybox security update
5 Sep 202615:03
–osv_oesa
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu14.04allbusybox0busybox_0_all.deb
Ubuntu16.04allbusybox0busybox_0_all.deb
Ubuntu18.04allbusybox0busybox_0_all.deb
Ubuntu20.04allbusybox0busybox_0_all.deb
Ubuntu22.04allbusybox0busybox_0_all.deb
Ubuntu24.04allbusybox0busybox_0_all.deb
Ubuntu26.04allbusybox0busybox_0_all.deb

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02 Sep 2026 21:11Current
5.1Medium risk
Vulners AI Score5.1
CVSS 21.7
CVSS 3.13.3
CVSS 44.8
CVSS 33.3
EPSS0.0016
SSVC
BusyBoxnull pointer dereferenceFEATURE_WGET_TIMEOUTlocal accesswget timeout
26