CVE-2026-33522— BUG-000182936 - ArcGIS Server has a security vulnerability.

Quick assessment

Affected

Esri ArcGIS Server

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Esri ArcGIS Server 11.3 至 12.0 版本存在漏洞，仅允许远程、未认证的攻击者更新服务元数据。针对处于“正式发布”（General Availability）和“扩展支持”（Extended support）状态的 ArcGIS Server 软件（包括 12.0、11.5 和 11.3 版本）已提供补丁。其他版本处于“成熟”或“已退役”状态，不符合补丁更新资格。建议正在使用未列明版本的用户升级至受支持版本并应用相应补丁。

CVSS 5.3 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 2 AI

T1569 · System Services T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

BUG-000182936 - ArcGIS Server has a security vulnerability.

Source: CVE Program / CVE List V5

Vulnerability Description

Esri ArcGIS Server versions 11.3 to 12.0 ONLY allows a remote, unauthenticated attacker to update service metadata. A patch is provided for ArcGIS Server software in General Availability and Extended support status, which includes versions 12.0, 11.5, and 11.3. 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制不恰当

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Esri	ArcGIS Server	11.3 ~ 12.0	-

II. Public POCs for CVE-2026-33522

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-33522

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Other References for CVE-2026-33522 (1)

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/october-2026-arcgis-security-bulletin

https://www.cve.org/CVERecord?id=CVE-2026-33522

Same Patch Batch · Esri · 2026-10-26 · 6 CVEs total

CVE-2026-10757	9.8 CRITICAL	BUG-000187511 - ArcGIS Server has a security vulnerability.
CVE-2026-33521	7.5 HIGH	BUG-000186514 - ArcGIS Server has a security vulnerability.
CVE-2026-33520	6.1 MEDIUM	BUG-000185167 - ArcGIS Server has a security vulnerability.
CVE-2026-50096	6.1 MEDIUM	BUG-000187164 - ArcGIS Server has a security vulnerability.
CVE-2026-50095	6.1 MEDIUM	BUG-000187165 - ArcGIS Server has a security vulnerability.

IV. Related Vulnerabilities

Same product: ArcGIS Server

Same vendor: Esri

Same weakness: CWE-285