CVE-2019-9547: In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) c

Q: How do I fix CVE-2019-9547?

storage performance development kit: upgrade to 19.01. Exact commands for each OS are on this page.

Q: Is CVE-2019-9547 being exploited?

CVE-2019-9547 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-9547 affect?

CVE-2019-9547 affects storage performance development kit. Severity is medium (CVSS 5.3). In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) could carefully construct a circular descriptor chain that would result in a partial denial of service in the SPDK vhost target, be

Q: How urgent is CVE-2019-9547?

Priority 42/100. Remotely exploitable, no login, no user action

This month

MEDIUM 5.3REMOTEUPGRADE

CVE-2019-9547 is a medium-severity flaw (CVSS 5.3) affecting storage performance development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) could carefully construct a circular descriptor chain that would result in a partial denial of service in the SPDK vhost target, because the vhost target did not properly detect such chains.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-834
Published	2019-03-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: spdk

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-03-01 22:29 UTCPublished CVE record published
2026-06-17 02:43 UTCUpdated Record last modified

spdk storage performance development kit UPGRADE

Affected: < 19.01

Fixed in: 19.01

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy storage-performance-development-kit || rpm -q storage-performance-development-kit || storage-performance-development-kit --version

2. UPGRADE to 19.01 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade storage-performance-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade storage-performance-development-kit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-9547?

storage performance development kit: upgrade to 19.01. Exact commands for each OS are on this page.

Is CVE-2019-9547 being exploited?

CVE-2019-9547 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-9547 affect?

CVE-2019-9547 affects storage performance development kit. Severity is medium (CVSS 5.3). In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) could carefully construct a circular descriptor chain that would result in a partial denial of service in the SPDK vhost target, be

How urgent is CVE-2019-9547?

Priority 42/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-28361 HIGH 7.5 UPGRADE An issue was discovered in Storage Performance Development Kit (SPDK) before 20.01.01
CVE-2019-14940 MEDIUM 6.5 UPGRADE In Storage Performance Development Kit (SPDK) before 19.07, a user of a vhost can cause a crash if the target

References

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