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Linux EUVDEUVD-2026-108868

| CVE-2026-98912
2026-10-23 Linux GHSA-c2vm-8x7j-h34j
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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:

ALSA: seq: oss: Reject reads that cannot fit the next event

snd_seq_oss_read() checks whether the next queued OSS sequencer event fits in the remaining userspace buffer before removing it from the read queue.

The check is inverted. It currently stops when the event is smaller than the remaining buffer, so a normal 4-byte event is not copied for an 8-byte read buffer. Conversely, an 8-byte event can be copied for a smaller read count.

Break only when the remaining userspace buffer is smaller than the next event, and report -EINVAL if no complete event has been copied. This prevents an undersized read from looking like end-of-file while leaving the event queued for a later read with a large enough buffer.

Affected VersionsENISA

Linux patch: 6.18.53
Linux 0 <5.10.271
Linux 0 <6.18.53
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <20b8520d1ef996173065f7abdde47b99136c0785
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7483fd5f6990f43cc266e94b3f50ce84856ebb97
Linux patch: 7.2
Linux patch: 6.6.158
Linux 0 <5.15.222
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b3b4b647313757a275be7f7f9d0415d0a90acf73
Linux patch: 5.15.222
Linux patch: 6.12.111
Linux 0 <6.1.189
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <611f538253d970f4d152003841544e875828d015
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <372bec8a01e2ab8eaa6851bdc346ede5f82dba99
Linux patch: 6.1.189
Linux 0 <6.6.158
Linux patch: 5.10.271
Linux 0 <6.12.111
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2922cf2583e590f51bed613a6fcd27b9aea83674
Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <591226398c1f93bd994678237ff0be229b19d3bb

Affected Packages

euvd linux fix: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53

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

2
Patch available
Oct 23, 2026 - 13:17 EUVD
CVE Published
Oct 23, 2026 - 11:55 cve.org
UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Data Quality
4 sources
Confidence: Medium

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

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