CVE-2021-42721

Media Encoder vulnerability

CVSS

7.8

EPSS

3.5%

EPSS pct

88th

Exploited

No known

Acrobat Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected vendor

Adobe

Affected product

Media Encoder

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-416 — Use After Free

Published

2021-11-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2021-42721

Confirm whether Adobe Media Encoder is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-42721.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-42721

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-42721 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2021-42721?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2021-42721.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH

CVE-2015-7905

Visilogic Oplc Ide vulnerability

Websphere Portal vulnerability