CVE-2021-29093 ArcGIS Server image service and raster analytics security update: use-after-free
An authenticated attacker with specialized permissions can achieve arbitrary code execution via a use-after-free vulnerability in ArcGIS Server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-29093?
CVE-2021-29093 is a medium-severity use after free vulnerability in Esri Arcgis Server, published on 25 Mar 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A use-after-free vulnerability when parsing a specially crafted file in Esri ArcGIS Server 10.8.1 (and earlier) allows an authenticated attacker with specialized permissions to achieve arbitrary code execution in the context of the service account.
Weakness: CWE-416
Which versions are affected by CVE-2021-29093?
It affects 1 product.
Products include Esri Arcgis Server.
How do I fix CVE-2021-29093?
No fix has been published for CVE-2021-29093 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-29093 being exploited?
There is no known exploitation of CVE-2021-29093 in the wild and no public exploit code.
Other vulnerabilities in Esri Arcgis Server
- CVE-2025-57870 BUG-000179884 - There is a security vulnerability in ArcGIS Server Feature Services.
- CVE-2026-9181 Directory Traversal in ArcGIS Server
- CVE-2026-9182 Unvalidated File Upload vulnerability in ArcGIS Server.
- CVE-2020-35712 Server-side request forgery in n/a
- CVE-2021-29102 There is a Server-Side Request Forgery (SSRF) vulnerability in Esri ArcGIS Server Manager version 10.8.1 and below.
Sources
Also known as GHSA-9rmq-v4f7-rgqg.