CVE-2021-29100

Code execution via unchecked KMZ paths

Published May 5, 2021 · Updated Apr 10, 2025

Path traversal in Esri ArcGIS Earth 1.11.0 and earlier allows attackers to create arbitrary files via crafted KMZ files. KMZ filename paths are not properly validated before file operations, allowing traversal outside the intended directory and arbitrary file creation. Exploitation requires a user to open or visit a malicious file or page, after which code executes in the current user's security context.

CVSS severity7.8
High
EPSS probability1.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Esri ArcGIS Earth 1.11.0 and earlier allows attackers to create arbitrary files via crafted KMZ files. KMZ filename paths are not properly validated before file operations, allowing traversal outside the intended directory and arbitrary file creation. Exploitation requires a user to open or visit a malicious file or page, after which code executes in the current user's security context.

The record

CVE
CVE-2021-29100
Published
May 5, 2021
Updated
Apr 10, 2025
Vendor
Esri
Product
ArcGIS Earth
Classifications
CWE-22, CWE-23, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.11 <1.11.2903

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Esri · ArcGIS Earthversion=1.11 <1.11.2903

Published CVSS scores

7.8EsriCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.0EsriCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)
CWE-23Relative Path Traversal
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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