CVE-2023-29544Network attack vector

Memory corruption via garbage collector exhaustion

Published Jun 2, 2023 · Updated Jan 10, 2025

Memory corruption in Mozilla Firefox before 112 allows remote attackers to crash the browser via crafted resource exhaustion. Multiple resource-exhaustion events at an unlucky time can make the garbage collector corrupt memory and trigger a potentially exploitable crash. The issue requires delivery of content that causes repeated exhaustion; the published impact is browser-process interruption and possible memory corruption, with no demonstrated data read or write.

CVSS severity6.5
Medium
EPSS probability0.45%
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 Mozilla Firefox before 112 allows remote attackers to crash the browser via crafted resource exhaustion. Multiple resource-exhaustion events at an unlucky time can make the garbage collector corrupt memory and trigger a potentially exploitable crash. The issue requires delivery of content that causes repeated exhaustion; the published impact is browser-process interruption and possible memory corruption, with no demonstrated data read or write.

The record

CVE
CVE-2023-29544
Published
Jun 2, 2023
Updated
Jan 10, 2025
Vendor
Mozilla
Product
Firefox
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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 <112

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mozilla · Firefoxversion=unspecified <112
Mozilla · Firefox for Androidversion=unspecified <112
Mozilla · Firefox Focus for Androidversion=unspecified <112

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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