CVE-2022-28234

Code execution via crafted PDF memory corruption

Published May 11, 2022 · Updated May 27, 2026

Memory corruption in Adobe Acrobat Reader DC 22.001.20085 and earlier allows attackers to execute code through a crafted PDF file. The CNA description attributes the flaw to a heap-based buffer overflow during PDF handling, while Adobe maps the same identifier to use-after-free without naming a narrower code locus. Execution requires a user to open the file and runs in that user's security context on Windows or macOS.

CVSS severity7.8
High
EPSS probability5.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Adobe Acrobat Reader DC 22.001.20085 and earlier allows attackers to execute code through a crafted PDF file. The CNA description attributes the flaw to a heap-based buffer overflow during PDF handling, while Adobe maps the same identifier to use-after-free without naming a narrower code locus. Execution requires a user to open the file and runs in that user's security context on Windows or macOS.

The record

CVE
CVE-2022-28234
Published
May 11, 2022
Updated
May 27, 2026
Vendor
Adobe
Product
Adobe Acrobat Reader
Classifications
CWE-122, CWE-416, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2022CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record 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 <=17.012.30205
  2. Affected versionversion=unspecified <=20.005.3031x
  3. Affected versionversion=unspecified <=22.001.20085
  4. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Acrobat Readerversion=unspecified <=17.012.30205; version=unspecified <=20.005.3031x; version=unspecified <=22.001.20085; version=unspecified <=None

Published CVSS scores

7.8AdobeCVSS:3.0/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-122Heap-based Buffer Overflow
CWE-416Use After Free
T1204.002User Execution: Malicious File
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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