CVE-2022-37379

Information disclosure via stale pointer after container expansion

Published Mar 29, 2023 · Updated Feb 14, 2025

Use-after-free in Foxit PDF Reader 11.2.1.53537 allows remote attackers to disclose process memory through a crafted PDF. AFSpecial_KeystrokeEx expands a container during iteration but fails to update a copied pointer before accessing the resulting stale address. Exploitation requires a user to visit a malicious page or open a malicious file; code execution requires chaining with another vulnerability.

CVSS severity3.3
Low
EPSS probability0.87%
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 Foxit PDF Reader 11.2.1.53537 allows remote attackers to disclose process memory through a crafted PDF. AFSpecial_KeystrokeEx expands a container during iteration but fails to update a copied pointer before accessing the resulting stale address. Exploitation requires a user to visit a malicious page or open a malicious file; code execution requires chaining with another vulnerability.

The record

CVE
CVE-2022-37379
Published
Mar 29, 2023
Updated
Feb 14, 2025
Vendor
Foxit Software
Product
Foxit PDF Reader
Classifications
CWE-416, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 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=11.2.1.53537

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Foxit Software · Foxit PDF Readerversion=11.2.1.53537

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.3Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

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.

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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
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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