CVE-2026-2812 — MEDIUM (5.3)

Q: How severe is CVE-2026-2812?

CVE-2026-2812 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-2812?

Check the references section above for vendor advisories and patch information. Affected products include: Esri Arcgis Server, Linux Linux Kernel, Microsoft Windows.

Vulnerability Description

ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the endpoint. Successful exploitation may result in disruption of the web-based browsing interface. This issue affects ArcGIS Server 12.0 and earlier.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Esri	Arcgis Server	>= 11.1, <= 12.0
Linux	Linux Kernel	-
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-287

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_Vendor Advisory

FAQ

What is CVE-2026-2812?

CVE-2026-2812 is a vulnerability with a CVSS score of 5.3 (MEDIUM). ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the end...

How severe is CVE-2026-2812?

CVE-2026-2812 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2812?

Check the references section above for vendor advisories and patch information. Affected products include: Esri Arcgis Server, Linux Linux Kernel, Microsoft Windows.