CVE-2022-2476

Denial of service via null pointer write

Published Jul 19, 2022 · Updated Aug 3, 2024

A null pointer dereference in WavPack 5.4.0 allows attackers to crash the wvunpack command-line decoder via a crafted WavPack file. The main function in cli/wvunpack.c writes through a null pointer while processing malicious input, producing a segmentation fault. Local users or automated jobs that decode an attacker-supplied file can trigger a denial of service; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

A null pointer dereference in WavPack 5.4.0 allows attackers to crash the wvunpack command-line decoder via a crafted WavPack file. The main function in cli/wvunpack.c writes through a null pointer while processing malicious input, producing a segmentation fault. Local users or automated jobs that decode an attacker-supplied file can trigger a denial of service; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2022-2476
Published
Jul 19, 2022
Updated
Aug 3, 2024
Vendor
David Bryant
Product
WavPack
Classifications
CWE-476, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

David Bryant · WavPackversion=5.5.0

Published CVSS scores

5.5SUSECVSS: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.

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

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-476NULL Pointer Dereference
T1203Exploitation for Client Execution

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo