CVE-2024-33764Public exploit

Process crash via recursive SVG element cloning

Published May 1, 2024 · Updated Mar 13, 2025

Stack overflow in LunaSVG 2.3.9 allows local users to crash an SVG-rendering process by supplying a crafted SVG file. Element::clone recursively duplicates attacker-controlled nested target elements during UseElement::build without detecting the reference cycle, exhausting the process stack. A local user must cause an application linked to LunaSVG, or the svg2png converter, to render the crafted file; the demonstrated consequence is process termination.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in LunaSVG 2.3.9 allows local users to crash an SVG-rendering process by supplying a crafted SVG file. Element::clone recursively duplicates attacker-controlled nested target elements during UseElement::build without detecting the reference cycle, exhausting the process stack. A local user must cause an application linked to LunaSVG, or the svg2png converter, to render the crafted file; the demonstrated consequence is process termination.

The record

CVE
CVE-2024-33764
Published
May 1, 2024
Updated
Mar 13, 2025
Vendor
Samuel Ugochukwu
Product
LunaSVG
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 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=2.3.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samuel Ugochukwu · LunaSVGversion=2.3.9

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/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

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 exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

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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