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Vulnerability ID

CVE-2026-46300

Missing initialization of a variable in net/skbuff

ProductLinux kernel

CVSS 3.1High7.8

EPSS16.13%

Has public PoCYes

AI Exploitability

No working AI exploit yet

Working AI PoC: Not yet
Cheapest run: $12.15
Fastest run: —

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost.

CWE: CWE-787
Weakness: Out-of-bounds Write
Component: net/skbuff
Impact: Not stated
Published: 2026-05-29
Fixed version: 7.1

Risk factors

In-the-WildObserved

CISA KEVListed

Public ExploitAvailable

Ransomware useNone known

Severity

CVSS 3.1Only version published

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability

Attack VectorLocal

ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

EPSS

Chance of exploitation in the next 30 days

16.13%

SSVC

Stakeholder-specific vulnerability categorization

Not scored. CISA publishes an SSVC decision for a subset of CVEs.