CVE-2021-21055

Information disclosure via replaceable referenced files

Published Feb 11, 2021 · Updated Apr 23, 2025

Untrusted search path handling in Adobe Dreamweaver 20.2 and earlier and 21.0 and earlier allows physically proximate attackers to disclose data. The published record does not identify the affected file-loading routine or search directories; it states that referenced configuration files and dynamic libraries can be replaced. Exploitation requires physical access, low privileges, and user interaction, and the disclosed consequence is sensitive information exposure in the current user's context.

CVSS severity6.2
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted search path handling in Adobe Dreamweaver 20.2 and earlier and 21.0 and earlier allows physically proximate attackers to disclose data. The published record does not identify the affected file-loading routine or search directories; it states that referenced configuration files and dynamic libraries can be replaced. Exploitation requires physical access, low privileges, and user interaction, and the disclosed consequence is sensitive information exposure in the current user's context.

The record

CVE
CVE-2021-21055
Published
Feb 11, 2021
Updated
Apr 23, 2025
Vendor
Adobe
Product
Dreamweaver
Classifications
CWE-426, CAPEC-38, T1574
Attack vector
physical
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=unspecified <=20.2
  2. Affected versionversion=unspecified <=21.0
  3. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectorphysical
Required privilegesauthenticated

What is affected?

Adobe · Dreamweaverversion=unspecified <=20.2; version=unspecified <=21.0; version=unspecified <=None

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
6.2Adobe Systems IncorporatedCVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
CAPEC-38Leveraging/Manipulating Configuration File Search Paths
T1574Hijack Execution Flow

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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