CVE-2022-33064Public exploit

Code execution via off-by-one WAV cue write

Published Jul 18, 2023 · Updated Oct 28, 2024

Out-of-bounds write in libsndfile 1.1.0 allows context-dependent attackers to execute code or crash an application via a crafted WAV file. The wav_read_header function writes cue-point fields at index 100 into a fixed SF_CUE_POINT[100] array because its boundary check accepts one element too many. A user or calling application must open the malicious audio file; successful exploitation can corrupt memory, terminate the process, or execute code.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in libsndfile 1.1.0 allows context-dependent attackers to execute code or crash an application via a crafted WAV file. The wav_read_header function writes cue-point fields at index 100 into a fixed SF_CUE_POINT[100] array because its boundary check accepts one element too many. A user or calling application must open the malicious audio file; successful exploitation can corrupt memory, terminate the process, or execute code.

The record

CVE
CVE-2022-33064
Published
Jul 18, 2023
Updated
Oct 28, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-193, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/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.

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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-193Off-by-one Error
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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