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CVE-2010-2526· NVD / CVE Program· CNA redhat

The cluster logical volume manager daemon (clvmd) in lvm2-cluster in LVM2 before 2.02.72, as used in Red Hat Global File System (GFS) and ot

Noroxi assessment

Priority: Monitor (action score 18/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.49% (FIRST EPSS).
  • No special conditions are required; it is repeatable.
  • Fixed version: lvm2 (Debian:12) 2.02.66-3; lvm2 (Debian:5.0) 2.02.39-8; lvm2-cluster (Red Hat:rhel_cluster_storage:5) 0:2.02.56-7.el5_5.4.

Low priority for now. Upgrade to lvm2 (Debian:12) 2.02.66-3; lvm2 (Debian:5.0) 2.02.39-8; lvm2-cluster (Red Hat:rhel_cluster_storage:5) 0:2.02.56-7.el5_5.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

The cluster logical volume manager daemon (clvmd) in lvm2-cluster in LVM2 before 2.02.72, as used in Red Hat Global File System (GFS) and other products, does not verify client credentials upon a socket connection, which allows local users to cause a denial of service (daemon exit or logical-volume change) or possibly have unspecified other impact via crafted control commands.

MediumCVSS 4.6 · v2.0—No exploit Fix available
Published
Aug 5, 2010
Updated
Jun 16, 2026
EPSS
0.5% · 41th percentile

Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
18 / 40 · 4.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
heinz mauelshagenlvm2
redhatcluster suite
redhatenterprise linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • heinz mauelshagen lvm2up to 2.02.71 inclusive
  • heinz mauelshagen lvm22.02.50
  • heinz mauelshagen lvm22.02.51
  • heinz mauelshagen lvm22.02.52
  • heinz mauelshagen lvm22.02.53
  • heinz mauelshagen lvm22.02.54
  • heinz mauelshagen lvm22.02.55
  • heinz mauelshagen lvm22.02.56
  • heinz mauelshagen lvm22.02.57
  • heinz mauelshagen lvm22.02.58
  • heinz mauelshagen lvm22.02.59
  • heinz mauelshagen lvm22.02.60
  • heinz mauelshagen lvm22.02.61
  • heinz mauelshagen lvm22.02.62
  • heinz mauelshagen lvm22.02.63
  • heinz mauelshagen lvm22.02.64
  • heinz mauelshagen lvm22.02.65
  • heinz mauelshagen lvm22.02.66
  • heinz mauelshagen lvm22.02.67
  • heinz mauelshagen lvm22.02.68

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12lvm2before 2.02.66-32.02.66-3
Debian:5.0lvm2before 2.02.39-82.02.39-8
Red Hat:rhel_cluster_storage:5lvm2-clusterbefore 0:2.02.56-7.el5_5.40:2.02.56-7.el5_5.4
Red Hat:rhel_cluster_storage:5lvm2-cluster-debuginfobefore 0:2.02.56-7.el5_5.40:2.02.56-7.el5_5.4
Red Hat:rhel_global_file_system:4lvm2-clusterbefore 0:2.02.42-5.el4_8.20:2.02.42-5.el4_8.2
Red Hat:rhel_global_file_system:4lvm2-cluster-debuginfobefore 0:2.02.42-5.el4_8.20:2.02.42-5.el4_8.2

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:lvm22.02.66-3 · Debian:12Package registry (OSV)
red hat:lvm2-cluster0:2.02.56-7.el5_5.4 · Red Hat:rhel_cluster_storage:5Package registry (OSV)
red hat:lvm2-cluster-debuginfo0:2.02.56-7.el5_5.4 · Red Hat:rhel_cluster_storage:5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
P · data or configuration can be modified
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
P
Integrity impact
P
Availability impact
P

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

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References

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records