CVE-2025-57275Network attack vector

Service interruption via unchecked registrant array indexing

Published Oct 1, 2025 · Updated Oct 21, 2025

Buffer overflow in the SPDK 25.05 NVMe-oF target allows remote authenticated users to corrupt memory through Reservation Register commands. The nvmf_ns_update_reservation_info function indexes a 16-entry registrant array without stopping when the namespace has additional registrants. When PTPL is explicitly enabled, an initiator able to register more than 16 hosts can overwrite adjacent memory, disrupting the target or altering data.

CVSS severity5.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the SPDK 25.05 NVMe-oF target allows remote authenticated users to corrupt memory through Reservation Register commands. The nvmf_ns_update_reservation_info function indexes a 16-entry registrant array without stopping when the namespace has additional registrants. When PTPL is explicitly enabled, an initiator able to register more than 16 hosts can overwrite adjacent memory, disrupting the target or altering data.

The record

CVE
CVE-2025-57275
Published
Oct 1, 2025
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, CWE-120, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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