Is there a patch available for CVE-2026-98233?

Yes, a patch is available for CVE-2026-98233. Update the affected software to the latest version immediately.

Linux CVE-2026-98233

EUVD-2026-93161

2026-10-06 Linux

GHSA-6w2p-qxh2-6wc3

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

net/packet: clear RX owner on VNET header error

Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2 ring slot before converting the virtio-net header. If the conversion fails, the drop path leaves the slot claimed.

With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves the only slot unavailable, so the ring also drops the next valid packet.

Clear the ownership bit on this error path. TPACKET_V3 already clears its block state here.

Affected VersionsENISA

Linux 5.6

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <23cd30498891d29a69ec9b75bd92f8a0f21f1342

Linux 5.4.29 <5.5

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <b8c0cb3069058c2d67b5c7c833b2833381ecffdc

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <bb10a0084c03a94364aeec542beddc5d49b59f59

Linux patch: 0

Linux 5.5.14 <5.6

Linux patch: 7.2.8

Linux 6fb0e4385928900ccb8697748555b3f54bba5193

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <693209a237fc548791cf402441db8b68d1da7d38

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <49a48a5aaf85fe69d2dc3fb334b4854fadf44e39

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <2daa618e7ff19eefcbda281bc4c5998c4140f9cf

Linux 4.14.175 <4.15

Linux 86137342fd4cf52882842aa8d1318b2661f08e8a

Linux patch: 5.10.271

Linux patch: 5.15.222

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <33ff111d7ba3beb86e28938d6382bb5beabd865a

Linux 2975472e042e0bbfeeabddc5023cb8c011ec5a07

Linux patch: 6.18.54

Linux patch: 6.1.189

Linux 4.19.114 <4.20

Linux patch: 7.3-rc4

Linux 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 <805edbdcb8681da5f7ee43b3c3c809f7a8c31208

Linux patch: 6.6.158

Linux b06e4d3ed4044c2facf10a511d809f9aa29d960e

Linux patch: 6.12.112

Affected Packages

euvd linux fix: 4.15, 4.20, 5.5, 5.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 06, 2026 - 10:02 EUVD

CVE Published

Oct 06, 2026 - 08:45 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 89% exploitable

Threat Intel

1 sources

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS NEWS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.