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CVE Record

CVE-2018-10540: An issue was discovered in WavPack 5.1.0 and earlier for W64 input.

An issue was discovered in WavPack 5.1.0 and earlier for W64 input. Out-of-bounds writes can occur because ParseWave64HeaderConfig in wave64.c does not validate the sizes of unknown chunks before attempting memory allocation, related to a lack of integer-overflow protection within a bytes_to_copy calculation and subsequent malloc call, leading to insufficient memory allocation.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-10540 is a memory corruption flaw in WavPack 5.1.0 and earlier when processing W64 audio input. A specially crafted audio file could trigger out-of-bounds writes. Business risk is highest where servers, desktop tools, or automated pipelines process untrusted audio files.

Executive priority

Treat this as a targeted remediation item, not an emergency, unless untrusted audio is processed at scale. The impact could be serious memory corruption, but the source bundle provides no CVSS score, no KEV status, and no confirmed active exploitation.

Technical view

The issue is in ParseWave64HeaderConfig in wave64.c. Unknown W64 chunk sizes were not validated before allocation. Integer-overflow protection was missing in bytes_to_copy and the later malloc could allocate too little memory, enabling out-of-bounds writes during W64 parsing.

Likely exposure

Exposure is likely limited to systems running WavPack 5.1.0 or earlier, or distribution packages that embedded vulnerable WavPack code before vendor updates. Prioritize media-processing services, upload workflows, forensic tooling, and desktops that open untrusted W64 audio files.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability appears file-triggered: an attacker would need a vulnerable WavPack parser to process a malicious W64 file. Public issue and patch references exist, but exploit availability is not established here.

Researcher notes

Useful anchors are the GitHub issue, upstream commit 6f8bb34c2993a48ab9afbe353e6d0cff7c8d821d, and Linux distribution advisories. The source data does not include a CWE mapping, CVSS vector, or confirmed exploit status, so severity assessment should remain qualified.

Mitigation direction

  • Upgrade WavPack using vendor-supported packages or upstream fixed releases.
  • Apply Debian, Ubuntu, Slackware, or Fedora security updates where applicable.
  • Restrict processing of untrusted W64 files until patched.
  • Review third-party products that bundle WavPack independently of OS packages.
  • Monitor vendor guidance for exact fixed package versions.

Validation and detection

  • Inventory hosts and applications using WavPack 5.1.0 or earlier.
  • Check package status against Debian DSA-4197 and Ubuntu USN-3637-1 where relevant.
  • Verify builds include the upstream fix commit or later vendor patches.
  • Identify workflows that parse externally supplied W64 audio files.
  • Confirm security scanners detect patched WavPack packages after updates.
Prepared
Confidence
high
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2018-10540 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.