# CVE-2026-13473: IBM Storage Protect Client is vulnerable to Heap-Based Buffer Overflow

> A remote attacker can exploit a heap-based buffer overflow in the IBM Storage Protect Client to execute arbitrary code or cause a denial of service.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jul 2026
- **Updated:** 23 Jul 2026
- **Also known as:** GHSA-9qhh-4vx4-2pqx

## What is CVE-2026-13473?

CVE-2026-13473 is a high-severity memory corruption vulnerability in IBM Storage Protect Client, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2026-13473?

It affects 1 product.


Products: Ibm Storage Protect.

## How do I fix CVE-2026-13473?

No fix has been published for CVE-2026-13473 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13473 being exploited?

There is no known exploitation of CVE-2026-13473 in the wild and no public exploit code.

## Other vulnerabilities in IBM Storage Protect Client

- [CVE-2026-12628](https://insights.sbomify.com/CVE-2026-12628/): Hardcoded credential in the IBM Storage Protect Snapshot For Windows leads to unauthorized access to system (critical 9.1)
- [CVE-2023-35897](https://insights.sbomify.com/CVE-2023-35897/): IBM Spectrum Protect code execution (high 8.4)
- [CVE-2024-38320](https://insights.sbomify.com/CVE-2024-38320/): IBM Storage Protect for Virtual Environments: Data Protection for VMware information disclosure (medium 5.9)
- [CVE-2023-40368](https://insights.sbomify.com/CVE-2023-40368/): IBM Storage Protect information disclosure (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13473 and fix it if it is affected.

What it is: CVE-2026-13473 is a high-severity memory corruption vulnerability in IBM Storage Protect Client, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-13473 in the wild and no public exploit code.

Affected product: IBM Storage Protect Client. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-13473/ (Markdown: https://insights.sbomify.com/CVE-2026-13473/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13473
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13473
- OSV: https://osv.dev/vulnerability/CVE-2026-13473

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13473/
Summaries are generated and may contain mistakes; the official description above is the record.