CVE-2022-27790

Code execution via stale embedded-font object

Published May 11, 2022 · Updated Sep 17, 2024

Use-after-free in Adobe Acrobat Reader 22.001.20085 and earlier allows remote attackers to execute code via a malicious file. Embedded-font parsing performs operations on an object without first validating that the object still exists. A victim must open the file or visit malicious content, after which code runs in the context of the current user.

CVSS severity7.8
High
EPSS probability11.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Adobe Acrobat Reader 22.001.20085 and earlier allows remote attackers to execute code via a malicious file. Embedded-font parsing performs operations on an object without first validating that the object still exists. A victim must open the file or visit malicious content, after which code runs in the context of the current user.

The record

CVE
CVE-2022-27790
Published
May 11, 2022
Updated
Sep 17, 2024
Vendor
Adobe
Product
Adobe Acrobat Reader
Classifications
CWE-416, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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

9.3National Institute of Standards and TechnologyAV:N/AC:M/Au:N/C:C/I:C/A:C
7.8Adobe Systems IncorporatedCVSS: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-416Use After Free
T1203Exploitation for Client Execution
T1204.002Malicious 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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