CVE-2022-4743Network attack vector

Service interruption via GLES texture memory leak

Published Jan 12, 2023 · Updated Nov 25, 2025

Memory leak in SDL2 before 2.26.0 allows attackers to interrupt a service by exhausting memory during GLES texture creation. GLES_CreateTexture in SDL_render_gles.c freed its texture data structure but left the streaming pixel buffer allocated when glGenTextures or glTexImage2D returned an error. A consuming application must repeatedly reach one of those OpenGL ES error paths; the upstream discussion does not establish a remote input path.

CVSS severity7.5
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in SDL2 before 2.26.0 allows attackers to interrupt a service by exhausting memory during GLES texture creation. GLES_CreateTexture in SDL_render_gles.c freed its texture data structure but left the streaming pixel buffer allocated when glGenTextures or glTexImage2D returned an error. A consuming application must repeatedly reach one of those OpenGL ES error paths; the upstream discussion does not establish a remote input path.

The record

CVE
CVE-2022-4743
Published
Jan 12, 2023
Updated
Nov 25, 2025
Vendor
Simple DirectMedia Layer
Product
Simple DirectMedia Layer 2
Classifications
CWE-401, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 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=Affects SDL2 v2.0.4 and above, Fixed-in sdl-2.26.0, sdl-prerelease-2.25.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Simple DirectMedia Layer · Simple DirectMedia Layer 2version=Affects SDL2 v2.0.4 and above, Fixed-in sdl-2.26.0, sdl-prerelease-2.25.1

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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