bhyve(8) out-of-bounds read access via XHCI emulation
Priority LOW 39CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
An insufficient boundary validation in the USB code could lead to an out-of-bounds read on the heap, which could potentially lead to an arbitrary write and remote code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00776 56th percentileScored 2026-11-07
Fix Fixed FreeBSD (FreeBSD): p5, p11, p1 +1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FreeBSD | FreeBSD | 14.1-RELEASE to before p5; 14.0-RELEASE to before p11; 13.4-RELEASE to before p1; 13.3-RELEASE to before p7 | p5, p11, p1, p7 | Patch available | CNA |
- FreeBSD VendorFreeBSD Affected 14.1-RELEASE to before p5; 14.0-RELEASE to before p11; 13.4-RELEASE to before p1; 13.3-RELEASE to before p7 Fixed in p5, p11, p1, p7 Patch available CNA
Remediation
- Fix · CNA FreeBSD (FreeBSD) Fixed in p5, p11, p1, p7
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41721
- 2026-10-03 Alias added: GHSA-77f2-r3qh-x5x7
References
More FreeBSD vulnerabilities
- TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
- TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
- TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
Sources
- CVE-2024-41721 · CVE Program
- CVE-2024-41721 · NVD
- FIRST EPSS
- GHSA-77f2-r3qh-x5x7 · GitHub Advisory Database · CC BY 4.0
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