# CVE-2021-29112: Esri ArcReader PMF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

> An attacker can disclose sensitive information by tricking a user into opening a specially crafted PMF file in Esri ArcReader.

- **Severity:** Low 3.3 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Aug 2022
- **Updated:** 10 Apr 2025
- **Also known as:** GHSA-m4gc-2r8r-mgj7

## What is CVE-2021-29112?

CVE-2021-29112 is a low-severity vulnerability in Esri ArcReader, published on 12 Aug 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

An out-of-bounds read vulnerability exists when parsing a specially crafted file in Esri ArcReader 10.8.1 (and earlier) which allow an unauthenticated attacker to induce an information disclosure issue in the context of the current user.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2021-29112?

It affects 1 product.


Products: Esri Arcreader.

## How do I fix CVE-2021-29112?

No fix has been published for CVE-2021-29112 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-29112 being exploited?

There is no known exploitation of CVE-2021-29112 in the wild and no public exploit code.

## Other vulnerabilities in Esri ArcReader

- [CVE-2021-29117](https://insights.sbomify.com/CVE-2021-29117/): arcreader use-after-free (high 7.8)
- [CVE-2021-29118](https://insights.sbomify.com/CVE-2021-29118/): Esri ArcReader PMF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29112 and fix it if it is affected.

What it is: CVE-2021-29112 is a low-severity vulnerability in Esri ArcReader, published on 12 Aug 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-29112 in the wild and no public exploit code.

Affected product: Esri ArcReader. 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-2021-29112/ (Markdown: https://insights.sbomify.com/CVE-2021-29112/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29112
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29112
- OSV: https://osv.dev/vulnerability/CVE-2021-29112

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29112/
Summaries are generated and may contain mistakes; the official description above is the record.