CVE-2021-35000

OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability

LOW
3.3
CVSS Score
Published: May 7, 2024 at 10:54 PM UTC
Updated: June 17, 2026 at 03:56 AM UTC
1 product affected across 1 vendorOpenBSD

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Severity
LOW3.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. . Was ZDI-CAN-16112.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWzdi
Vector?

Quick Info

StatusANALYZED
CWE
CWE-908

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