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CVE-2021-28361

24
FAUCET Score

CVE-2021-28361 is a high-severity vulnerability affecting Storage Performance Development Kit (SPDK) versions prior to 20.01.01. It allows an unauthenticated attacker to crash the iSCSI target via a NULL pointer dereference by sending a specially crafted PDU with a zero length when data is expected. The attack complexity is low, and it results in a complete denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 20.01.01CPE matchmatch criteria
cpe:2.3:a:spdk:storage_performance_development_kit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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 Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 41st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

microsoftpatch availablevia msrc
Product: 19814-17086Fixed in: 16.2.10-3
microsoftpatch availablevia msrc
Product: 16855-17084Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: 19666-17084Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 16.2.10-3
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 16.2.10-3
microsoftpatch availablevia msrc
Product: azl3 ceph 18.2.2-1 on Azure Linux 3.0Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: azl3 ceph 18.2.2-8 on Azure Linux 3.0Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: cbl2 ceph 16.2.10-7 on CBL Mariner 2.0Fixed in: 16.2.10-3
redhatend of lifevia redhat_api
Product: Red Hat Openshift Container Storage 4Fixed in: ceph
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: ceph

Vendor Advisories (3)

microsoft2024-Dec/CVE-2021-28361

CVE-2021-28361

Dec 10, 2024
redhatCVE-2021-28361Moderate

spdk: NULL pointer dereference in the iSCSI target If a PDU is sent with a zero length

Mar 10, 2021
microsoft2021-Mar/CVE-2021-28361Important

An issue was discovered in Storage Performance Development Kit (SPDK) before 20.01.01. If a PDU is sent to the iSCSI target with a zero length (but data is expected) the iSCSI target can crash with a NULL pointer dereference.

Mar 9, 2021

References

github.com / spdk/spdk/releases/tag/v21.01.1
Third Party Advisory