What is the CVSS score of CVE-2026-22992?

CVE-2026-22992 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Linux are affected by CVE-2026-22992?

CVE-2026-22992 presents moderate security risk, a null pointer dereference vulnerability rated CVSS 5.5. Exploitation could compromise the security of affected deployments.. A patch is available.

Linux CVE-2026-22992

HIGH

NULL Pointer Dereference (CWE-476)

2026-01-23 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Denial Of Service Linux Null Pointer Dereference

7.5

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 27, 2026 - 14:22 vuln.today

cvss_changed

Severity Changed

Apr 27, 2026 - 14:22 NVD

MEDIUM HIGH

CVSS changed

Apr 27, 2026 - 14:22 NVD

5.5 (MEDIUM) 7.5 (HIGH)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

Patch released

Feb 26, 2026 - 18:47 nvd

Patch available

CVE Published

Jan 23, 2026 - 16:15 nvd

MEDIUM 5.5

DescriptionNVD

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

libceph: return the handler error from mon_handle_auth_done()

Currently any error from ceph_auth_handle_reply_done() is propagated via finish_auth() but isn't returned from mon_handle_auth_done(). This results in higher layers learning that (despite the monitor considering us to be successfully authenticated) something went wrong in the authentication phase and reacting accordingly, but msgr2 still trying to proceed with establishing the session in the background. In the case of secure mode this can trigger a WARN in setup_crypto() and later lead to a NULL pointer dereference inside of prepare_auth_signature().

AnalysisAI

The Linux kernel's Ceph authentication handler fails to properly propagate errors from mon_handle_auth_done(), allowing the msgr2 protocol to proceed with session establishment even when authentication fails in secure mode. This can trigger a NULL pointer dereference in prepare_auth_signature(), causing a denial of service on systems using Ceph for storage or communication. …

RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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Vendor StatusVendor

CVE-2026-22992 vulnerability details – vuln.today

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Linux CVE-2026-22992

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

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External POC / Exploit Code