How severe is CVE-2021-29101?

CVE-2021-29101 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-29101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29101?

CVE-2021-29101 affects Esri Arcgis Geoevent Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29101?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29101 published?

CVE-2021-29101 was published on 2021-05-05 and last updated on 2026-06-17.

CVE-2021-29101

CVE-2021-29101 is a high-severity vulnerability in Esri Arcgis Geoevent Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Esri Arcgis Geoevent Server
Published: 2021-05-05
Last modified: 2026-06-17

Description

ArcGIS GeoEvent Server versions 10.8.1 and below has a read-only directory path traversal vulnerability that could allow an unauthenticated, remote attacker to perform directory traversal attacks and read arbitrary files on the system.

Frequently asked questions

What is CVE-2021-29101?: ArcGIS GeoEvent Server versions 10.8.1 and below has a read-only directory path traversal vulnerability that could allow an unauthenticated, remote attacker to perform directory traversal attacks and read arbitrary files on the system.
How severe is CVE-2021-29101?: CVE-2021-29101 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-29101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29101?: CVE-2021-29101 affects Esri Arcgis Geoevent Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29101?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29101 published?: CVE-2021-29101 was published on 2021-05-05 and last updated on 2026-06-17.

References

https://www.esri.com/arcgis-blog/products/ext-server-geoevent/administration/arcgis-geoevent-server-security-update-2021-patch-1

Affected products (1)

cpe:2.3:a:esri:arcgis_geoevent_server:*:*:*:*:*:*:*:*

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