CVE-2021-28589

Memory disclosure via crafted file parsing

Published Aug 20, 2021 · Updated Apr 23, 2025

Out-of-bounds read in Adobe Media Encoder 15.2 and earlier allows attackers to disclose process memory through a crafted media file. Adobe identifies file parsing as the affected locus but has not published the parser, file format, or specific unchecked read operation. The issue affects Windows and requires a victim to open the malicious file; the vendor reports no integrity or availability impact.

CVSS severity3.3
Low
EPSS probability2.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Adobe Media Encoder 15.2 and earlier allows attackers to disclose process memory through a crafted media file. Adobe identifies file parsing as the affected locus but has not published the parser, file format, or specific unchecked read operation. The issue affects Windows and requires a victim to open the malicious file; the vendor reports no integrity or availability impact.

The record

CVE
CVE-2021-28589
Published
Aug 20, 2021
Updated
Apr 23, 2025
Vendor
Adobe
Product
Adobe Media Encoder
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 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 <=15.2
  2. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Media Encoderversion=unspecified <=15.2; version=unspecified <=None

Published CVSS scores

6.8NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:P/I:P/A:P
3.3Adobe Systems IncorporatedCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/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 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-125Out-of-bounds Read
T1204.002User Execution: Malicious File

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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