# CVE-2026-13522: Investintech SlimPDFReader PDF File SlimPDFReader.exe TeighaDo+0x25cde0 out-of-bounds

> A remote attacker can trigger an out-of-bounds read in SlimPDFReader via a malicious PDF, potentially causing a crash or leaking memory.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Jun 2026
- **Updated:** 29 Jun 2026
- **Also known as:** GHSA-3pg9-gwgr-fmmw

## What is CVE-2026-13522?

CVE-2026-13522 is a medium-severity memory corruption vulnerability in Investintech SlimPDFReader, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A security flaw has been discovered in Investintech SlimPDFReader up to 2.0.14. Affected by this issue is the function SlimPDFReader!Investintech::PCV::TeighaDo+0x25cde0 of the file SlimPDFReader.exe of the component PDF File Handler. Performing a manipulation results in out-of-bounds read. It is possible to initiate the attack remotely. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-125 (Out-of-bounds Read), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-13522?


## How do I fix CVE-2026-13522?

No fix has been published for CVE-2026-13522 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13522 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13522 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13522 and fix it if it is affected.

What it is: CVE-2026-13522 is a medium-severity memory corruption vulnerability in Investintech SlimPDFReader, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13522 exists.

Affected product: Investintech SlimPDFReader. 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-2026-13522/ (Markdown: https://insights.sbomify.com/CVE-2026-13522/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13522
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13522
- OSV: https://osv.dev/vulnerability/CVE-2026-13522

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13522/
Summaries are generated and may contain mistakes; the official description above is the record.