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CVE-2026-33521EUVD-2026-110059GHSA-WC5Q-3MFF-VVXV

BUG-000186514 - ArcGIS Server has a security vulnerability.

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 12.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Esri ArcGIS Server is affected by a denial of service flaw that a remote attacker without logging in could trigger with specially crafted requests, potentially exhausting the server's worker threads and blocking legitimate users from accessing the service.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

There is s denial of service vulnerability in Esri ArcGIS Server versions 12.0 and prior that may allow a remote, unauthenticated attacker to supply crafted requests that may, under exceptional circumstances, consume all available worker threads and deny service to users. A patch is provided for ArcGIS Server software in General Availability and Extended support status, which includes versions 12.0, 11.5, 11.3, and 11.1. Other versions are in mature or retired status, which are not patch eligible. Users working with unlisted versions are advised to upgrade and apply the patch.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  4. Record last updated

Affected versions

  • Esri ArcGIS Server

    From 11.1 · fixed in 12.0

References 1

esri.com