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Vulnerability ID

CVE-2026-52993

AI Exploitable

Release of invalid pointer or reference in tipc

ProductLinux kernel

CVSS 3.1High7.0

EPSS0.40%

Has public PoCNo

AI Exploitability

A working PoC was successfully generated by AI

Working AI PoC: Yes
Cheapest run: $70.91
Fastest run: 2.0 hr

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a pointer to a local variable which was a copy of the caller's skb pointer.

CWE: CWE-415
Weakness: Double Free
Component: tipc
Impact: Not stated
Published: 2026-06-24
Fixed version: 7.1

Risk factors

In-the-WildNot observed

CISA KEVNot listed

Public ExploitNone known

Ransomware useNone known

Severity

CVSS 3.1Only version published

7.0High

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

Exploitability

Attack VectorLocal

ComplexityHigh

Privileges RequiredLow

User InteractionNone

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

EPSS

Chance of exploitation in the next 30 days

0.40%

SSVC

Stakeholder-specific vulnerability categorization

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