CVE-2026-13473: IBM Storage Protect Client 8.1.0.0 through 8.1.27.0, 8.1.27.1, and 8.2.0.0 through 8.2.1.0 IBM Storage Protect

This month

HIGH 8.1REMOTEUPGRADE

CVE-2026-13473 is a high-severity flaw (CVSS 8.1) affecting storage protect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Storage Protect Client 8.1.0.0 through 8.1.27.0, 8.1.27.1, and 8.2.0.0 through 8.2.1.0 IBM Storage Protect is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. A remote attacker could overflow a buffer and execute arbitrary code on the system or cause the server to crash.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-122
Published	2026-07-17
Last modified	2026-10-24

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-17 20:17 UTCPublished CVE record published
2026-10-24 20:10 UTCUpdated Record last modified

ibm storage protect UPGRADE

Affected: >= 8.1 and < 8.2.1.2

Fixed in: 8.2.1.2

Safe to downgrade to: a release before 8.1

1. Check installed version

apt-cache policy storage-protect || rpm -q storage-protect || storage-protect --version

2. UPGRADE to 8.2.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade storage-protect

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade storage-protect

Note

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

3. If no update is available yet, DOWNGRADE to a release before 8.1 (Debian / Ubuntu)

apt-cache madison storage-protect sudo apt install storage-protect=<VERSION_BEFORE_8.1> sudo apt-mark hold storage-protect

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list storage-protect sudo dnf downgrade storage-protect-<VERSION_BEFORE_8.1> sudo dnf versionlock add storage-protect

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-13473?

storage protect: upgrade to 8.2.1.2. Exact commands for each OS are on this page.

Is CVE-2026-13473 being exploited?

CVE-2026-13473 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-2026-13473 affect?

CVE-2026-13473 affects storage protect. Severity is high (CVSS 8.1). IBM Storage Protect Client 8.1.0.0 through 8.1.27.0, 8.1.27.1, and 8.2.0.0 through 8.2.1.0 IBM Storage Protect is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. A remote attacker could overflow a buffer and

How urgent is CVE-2026-13473?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

References

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