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CVE-2026-86566 Dpdk: dpdk: guest with runt rx descriptors underflows copy length in vhost enqueue (split and packed rings)

🗓️ 14 Oct 2026 17:52:01Reported by redhatType 
cvelist
 cvelist🔗 www.cve.org👁 35 Views

Underflow in DPDK lib/vhost vhost enqueue causes DoS in shared vhost backends.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl		CVE-2026-86566
14 Oct 202623:16
–circl
cve
CVE		CVE-2026-86566
14 Oct 202617:52
–cve
debiancve
Debian CVE		CVE-2026-86566
14 Oct 202617:52
–debiancve
euvd
EUVD		EUVD-2026-101508
14 Oct 202617:52
–euvd
kitploit
Kitploit		Anthropic-Credited-CVEs
16 Oct 202604:29
–kitploit
mend
Mend		CVE-2026-86566
14 Oct 202617:52
–mend
nvd
NVD		CVE-2026-86566
14 Oct 202618:19
–nvd
osv-debian
osv-debian		DEBIAN-CVE-2026-86566
14 Oct 202618:19
–osv-debian
ptsecurity
Positive Technologies		PT-2026-114304
14 Oct 202600:00
–ptsecurity
redhatcve
RedhatCVE		CVE-2026-86566
14 Oct 202615:42
–redhatcve
Rows per page
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14 Oct 2026 17:52Current
CVSS 3.16.5
EPSS0.0013
SSVC
CWE-191
DPDKlib/vhostvhost enqueuedenial of serviceOVS-DPDK
35