What is the CVSS score of EUVD-2026-49030?

EUVD-2026-49030 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. EPSS exploitation probability: 0.2%.

Is there a patch available for EUVD-2026-49030?

Yes, a patch is available for EUVD-2026-49030. Update the affected software to the latest version immediately.

Linux EUVD-2026-49030

| CVE-2026-64318 HIGH

2026-07-25 Linux

GHSA-499p-p84w-r6w8

Information Disclosure Linux IBM

7.1

CVSS 3.1 · Vendor: Linux

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This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

We are tasked with synthesizing data from multiple sources about CVE-2026-64318 into a comprehensive analysis, returning a JSON object with specified fields. Let's carefully parse the provided information.

CVE-2026-64318: In the Linux kernel, a vulnerability in the AIX partition handling. The description: "aix_partition() reads the physical volume descriptor... pp_count is unvalidated, so a crafted AIX image with pp_count > 1016 drives an out-of-bounds read... bound the scan to array size."

From description:

Product: Linux kernel, specifically the partition handling for AIX disks (block/partitions/aix.c). So product_name: "Linux Kernel".
CVSS Score: 7.1, Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE: N/A
EPSS: 0.22% (percentile 13%)
Patch: Available from vendor
Tags: Linux, IBM, Information Disclosure
KEV status: not mentioned (likely not KEV). POC? Not mentioned. So no active exploitation or public exploit identified from data.
CPE: cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:* (but note: Linux kernel is typically "o:linux:linux_kernel", but given as "a" application? The data says "cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*". We'll use it as is, but product_name Linux kernel is correct.)
Affected versions: We have a list of git commit ranges and patches. We can extract the fix versions: mention specific stable versions patched: 7.1.4, 6.18.39, 5.15.212, 5.10.261, 7.2-rc1, 6.6.145, 6.12.96, 6.1.178, and the initial commit from 3.11. So the vulnerability was introduced long ago (Linux 3.11) and fixed in multiple stable branches. The description mentions "Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 < ..." which is the commit that fixed it? Possibly the fix commit. The EUVD entries give commit ranges where the vulnerability exists. We'll synthesize: Affected: Linux kernel versions from 3.11 up to before the fix in the 5.10, 5.15, 6.1, 6.6, 6.12, 6.18, 7.1, 7.2 series. So we can say "Linux kernel versions prior to the patched releases: 5.10.261, 5.1

Affected VersionsENISA

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <ce93228e2193a17d2c58b656e439bb39fe5c3af8

Linux patch: 7.1.4

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <5eacdb1967378f5e5591cd27a2d8cdee2df1a599

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <4671bb74bba05fdd4acf670a35758c29e8c97b83

Linux patch: 0

Linux patch: 6.18.39

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <2dc0bfd2fe355fb930de63c2f2eb8ced8570c579

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <b5e9c09309e18fd9839ad007c238120353ca0cc4

Linux patch: 5.15.212

Linux patch: 5.10.261

Linux patch: 7.2-rc1

Linux patch: 6.6.145

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <44f37ee92fdcd377c41bdf6a31cdd8cc7d4c410e

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <09861651617ba0fec089e8b9477439e68398c110

Linux patch: 6.12.96

Linux 6ceea22bbbc84fcf6bf0913bb3db8a657e9002f6 <fd94a779020f2ecc8b2607f4c20b34acb1763b9a

Linux patch: 6.1.178

Linux 3.11

Affected Packages

euvd linux no fix

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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Severity by source

Vendor (Linux) PRIMARY 7.1 HIGH

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

SUSE HIGH

Primary rating from Vendor (Linux).

CVSS VectorVendor: Linux

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

CVSS changed

Jul 27, 2026 - 05:22 NVD

7.1 (HIGH)

Patch available

Jul 25, 2026 - 11:18 EUVD

CVE Published

Jul 25, 2026 - 08:49 cve.org

UNKNOWN (no severity yet)

CVE Published

Jul 25, 2026 - 08:49 cve.org

HIGH 7.1

DescriptionCVE.org

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

partitions: aix: bound the pp_count scan to the ppe array

aix_partition() reads the physical volume descriptor into a fixed-size struct pvd and then scans its physical-partition-extent array:

int numpps = be16_to_cpu(pvd->pp_count); ... for (i = 0; i < numpps; i += 1) { struct ppe *p = pvd->ppe + i; ... lp_ix = be16_to_cpu(p->lp_ix);

pvd points at a single kmalloc()'d struct pvd whose ppe[] member holds a fixed ARRAY_SIZE(pvd->ppe) (1016) entries, but the loop runs up to the on-disk pp_count. pp_count is an unvalidated __be16 read straight from the descriptor, so a crafted AIX image with pp_count larger than 1016 drives the loop to read pvd->ppe[i] past the end of the allocation (up to 65535 entries, ~2 MB out of bounds).

The partition scan runs without mounting anything, when a block device with a crafted AIX/IBM partition table appears (an attacker-supplied image attached with losetup -P, or a device auto-scanned by udev), via msdos_partition() -> aix_partition().

Clamp the scan to the number of entries the ppe[] array can hold.

Threat Intelligence Overview

EPSS Score

0.2%

Top 87% exploitable

Data Quality

6 sources

Confidence: High

EUVD 🇯🇵JVN

NVD

CVE.org

EPSS MSRC Vendor

VulDB

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 HIGH

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

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

Same technique Information Disclosure

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9.8

CVE-2025-24813 CRITICAL POC

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CVE-2025-68613 HIGH POC

8.8

CVE-2015-1701 HIGH POC

7.8

CVE-2017-0147 HIGH POC

7.5

Vendor StatusVendor

SUSE

Severity: Important

Product	Status
SUSE Linux Enterprise Desktop 15 SP7	Affected
SUSE Linux Enterprise Desktop 15 SP7	Affected
SUSE Linux Enterprise High Availability Extension 15 SP7	Affected
SUSE Linux Enterprise High Availability Extension 15 SP7	Affected
SUSE Linux Enterprise High Availability Extension 16.0	Affected

References

Advisories & patches

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