How severe is CVE-2021-21055?

CVE-2021-21055 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21055?

CVE-2021-21055 primarily affects Adobe Dreamweaver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-21055?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-21055 published?

CVE-2021-21055 was published on 2021-02-11 and last updated on 2026-06-17.

CVE-2021-21055

CVE-2021-21055 is a medium-severity vulnerability in Adobe Dreamweaver with a CVSS 3.x base score of 6.2. 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-426.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v2: 2.1
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Adobe Dreamweaver
Published: 2021-02-11
Last modified: 2026-06-17

Description

Adobe Dreamweaver versions 21.0 (and earlier) and 20.2 (and earlier) is affected by an untrusted search path vulnerability that could result in information disclosure. An attacker with physical access to the system could replace certain configuration files and dynamic libraries that Dreamweaver references, potentially resulting in information disclosure.

Frequently asked questions

What is CVE-2021-21055?: Adobe Dreamweaver versions 21.0 (and earlier) and 20.2 (and earlier) is affected by an untrusted search path vulnerability that could result in information disclosure. An attacker with physical access to the system could replace certain configuration files and dynamic libraries that Dreamweaver references, potentially resulting in information disclosure.
How severe is CVE-2021-21055?: CVE-2021-21055 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21055?: CVE-2021-21055 primarily affects Adobe Dreamweaver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-21055?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-21055 published?: CVE-2021-21055 was published on 2021-02-11 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/dreamweaver/apsb21-13.html

Affected products (2)

cpe:2.3:a:adobe:dreamweaver:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:dreamweaver:21.0:*:*:*:*:*:*:*

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