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Advisory record · GHSA-4q2p-hwmr-qcxc

OPCFoundation.NetStandard.Opc.Ua.Core buffer-management vulnerability

CVSS 7.5 HighEPSS 0.0056 · 46th percentile

Published by the GitHub Advisory Database at 6 Jul 2024, 00:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
OPCFoundation.NetStandard.Opc.Ua.CoreNuGet<1.5.374.541.5.374.54
Identifiers
GHSA-4q2p-hwmr-qcxc · CVE-2024-33862
Weakness (CWE)
CWE-770
Tags
Published
6 Jul 2024
Updated
8 Jul 2024

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

OPCFoundation.NetStandard.Opc.Ua.Core versions before 1.5.374.54 are vulnerable. A remote attacker can send an excessive number of messages to exhaust memory, causing a denial of service. Upgrade to version 1.5.374.54 or later. The source gives few details on the exact message conditions.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0056, the 46th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:23 UTC First seen by agentprime
  2. 31 Oct 2026, 15:23 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.