An information disclosure vulnerability

published 2021-12-07 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15756

cvss: 5.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.2%; EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits: 0; none known

An information disclosure vulnerability in the ArcGIS Service Directory in Esri ArcGIS Enterprise versions 10.9.0 and below may allows a remote attacker to view hidden field names in feature layers. This issue may reveal field names, but not not disclose features.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-10)

Exploit prediction

2.18% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Esri ArcGIS Server

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-668 Exposure of Resource to Wrong Sphere

References

esri.com /arcgis-blog/products/arcgis-enterprise/administration/arcgis-server-security-2021-update-2-patch-is-now-avail
vendor-advisory

Sources

CVE List CVE-2021-29115
NVD CVE-2021-29115

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary