Technology · Busybox
BusyBox vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 13 vulnerabilities in BusyBox: 5 in the last 7 days and 9 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-88840, was published on 23 September 2026.
- Last 7 days
- 5
- Last 90 days
- 9
- Critical, all time
- 0
- Exploited in the wild
- 0
About BusyBox
BusyBox combines tiny versions of many common UNIX utilities into a single small executable.
Latest BusyBox vulnerabilities
- CVE-2026-88840: BusyBox TLS out-of-bounds read in ClientHello parsingmediumCVSS 5.3EPSS 0.2%
- CVE-2026-88839: BusyBox passwd/group tokenize() heap pointer out-of-bounds writemediumCVSS 6.7EPSS 0.1%
- CVE-2026-88835: BusyBox dpkg read_package_field() out-of-bounds heap readmediumCVSS 6.1EPSS 0.1%
- CVE-2026-88832: BusyBox romfs volume ID parsing heap buffer overflowhighCVSS 7.3EPSS 0.1%
- CVE-2026-88830: BusyBox TLS heap buffer overflow in Montgomery reductionhighCVSS 7.5EPSS 0.4%
- CVE-2026-38755: BusyBox ash heap overflow in evalcommand functioninfoCVSS 0
- CVE-2026-38754: BusyBox ash heap overflow in ifsbreakupinfoCVSS 0
- CVE-2026-38752: BusyBox stack overflow in AWK evaluate functioninfo
- CVE-2026-38753: BusyBox AWK use-after-free in awk_subinfo
- CVE-2026-29004: BusyBox heap buffer overflow in udhcpc6 DNS_SERVERS handlerhighCVSS 8.1EPSS 0.3%
- CVE-2026-26158: BusyBox arbitrary file modification via unvalidated tar link entrieshighCVSS 7EPSS 0.0%
- CVE-2026-26157: BusyBox path traversal in archive extraction utilitieshighCVSS 7EPSS 0.1%
- CVE-2025-60876: BusyBox wget HTTP header injection via request-target splittingmediumCVSS 6.5EPSS 0.1%
Most severe BusyBox vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-29004: BusyBox heap buffer overflow in udhcpc6 DNS_SERVERS handlerhighCVSS 8.1EPSS 0.3%
- CVE-2026-88830: BusyBox TLS heap buffer overflow in Montgomery reductionhighCVSS 7.5EPSS 0.4%
- CVE-2026-88832: BusyBox romfs volume ID parsing heap buffer overflowhighCVSS 7.3EPSS 0.1%
- CVE-2026-26157: BusyBox path traversal in archive extraction utilitieshighCVSS 7EPSS 0.1%
- CVE-2026-26158: BusyBox arbitrary file modification via unvalidated tar link entrieshighCVSS 7EPSS 0.0%
- CVE-2026-88839: BusyBox passwd/group tokenize() heap pointer out-of-bounds writemediumCVSS 6.7EPSS 0.1%
- CVE-2025-60876: BusyBox wget HTTP header injection via request-target splittingmediumCVSS 6.5EPSS 0.1%
- CVE-2026-88835: BusyBox dpkg read_package_field() out-of-bounds heap readmediumCVSS 6.1EPSS 0.1%
- CVE-2026-88840: BusyBox TLS out-of-bounds read in ClientHello parsingmediumCVSS 5.3EPSS 0.2%
- CVE-2026-38755: BusyBox ash heap overflow in evalcommand functioninfoCVSS 0
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 4 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 5 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/busybox.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "BusyBox vulnerabilities", https://junglewise.ai/threats/technologies/busybox, 26 September 2026.