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NVD / CVE Program· CNA Linux

CVE-2026-53128: drbd: Balance RCU calls in drbd_adm_dump_devices()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.16% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 1f112240531f0a0b437b2e001c1d89e8b25a8328, 282e06e6d494a7bee85af78c747527b7d4009cc3, 2b31e86387e60b3689339f0f0fbb4d3623d9d494; azl3 kernel 6.6.139.1-1 on Azure Linux 3.0 6.6.143.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1f112240531f0a0b437b2e001c1d89e8b25a8328, 282e06e6d494a7bee85af78c747527b7d4009cc3, 2b31e86387e60b3689339f0f0fbb4d3623d9d494; azl3 kernel 6.6.139.1-1 on Azure Linux 3.0 6.6.143.1-1 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

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: drbd: Balance RCU calls in drbd_adm_dump_devices() Make drbd_adm_dump_devices() call rcu_read_lock() before rcu_read_unlock() is called. This has been detected by the Clang thread-safety analyzer.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 24, 2026
Updated
Jul 6, 2026
EPSS
0.1% · 5th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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.

Follow CVE-2026-53128

When you'll hear from us

  • when it enters CISA KEV
  • 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
linuxlinux kernel

Affected versions

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

  • linux linux kernel4.5 and later · before 5.10.258
  • linux linux kernel5.11 and later · before 5.15.209
  • linux linux kernel5.16 and later · before 6.1.175
  • linux linux kernel6.2 and later · before 6.6.141
  • linux linux kernel6.7 and later · before 6.12.91
  • linux linux kernel6.13 and later · before 6.18.33
  • linux linux kernel6.19 and later · before 7.0.10

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.5affected
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before ae12bb44b392637a8321ade305c883f9ffc0daeaaffected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 68ebb9183ac3621b96b18e046841eadb9508783caffected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 6cd27bcb71bb73f955d104cc3a62be6f83724392affected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 282e06e6d494a7bee85af78c747527b7d4009cc3affected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 8092713a10c19fa0f731b71b2853af4319ca54fdaffected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 996d279f2c985d771d6cfdd923e447d825726e06affected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 1f112240531f0a0b437b2e001c1d89e8b25a8328affected · git
    • a55bbd375d1802141f0f043e2cd08f85c23d6209 and later · before 2b31e86387e60b3689339f0f0fbb4d3623d9d494affected · git
    • before 4.5not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.12.94-16.12.94-1
Debian:14linuxbefore 7.0.10-17.0.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-53126Jun 24, 2026 · blk-cgroup: fix disk reference leak in blkcg_maybe_throttle_current()
    22Monitor
  • ← EarlierCVE-2026-53127Jun 24, 2026 · block: fix zones_cond memory leak on zone revalidation error paths
    22Monitor
  • Later →CVE-2026-53130Jun 24, 2026 · fs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START
    31Monitor

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
Linux Linux1f112240531f0a0b437b2e001c1d89e8b25a8328Vendor (CNA)
Linux Linux282e06e6d494a7bee85af78c747527b7d4009cc3Vendor (CNA)
Linux Linux2b31e86387e60b3689339f0f0fbb4d3623d9d494Vendor (CNA)
Linux Linux68ebb9183ac3621b96b18e046841eadb9508783cVendor (CNA)
Linux Linux6cd27bcb71bb73f955d104cc3a62be6f83724392Vendor (CNA)
Linux Linux8092713a10c19fa0f731b71b2853af4319ca54fdVendor (CNA)
Linux Linux996d279f2c985d771d6cfdd923e447d825726e06Vendor (CNA)
Linux Linuxae12bb44b392637a8321ade305c883f9ffc0daeaVendor (CNA)
azl3 kernel 6.6.139.1-1 on Azure Linux 3.06.6.143.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.176-1 · Debian:12Package 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.

No history yet (it accumulates with the daily EPSS job).

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

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

All records