Memory corruption via unchecked ADPCM sample count
Published Aug 10, 2026 · Updated Aug 10, 2026
Out-of-bounds write in GStreamer's adpcmdec element on Red Hat Enterprise Linux allows remote attackers to corrupt memory via a crafted WAV file. The decoder accepts a multi-channel IMA/DVI ADPCM block whose declared sample count exceeds the output allocation, then writes decoded samples past that heap buffer. The target must process the untrusted file; exploitation can crash the consuming application or corrupt memory in its security context.
Summary
What happened
Out-of-bounds write in GStreamer's adpcmdec element on Red Hat Enterprise Linux allows remote attackers to corrupt memory via a crafted WAV file. The decoder accepts a multi-channel IMA/DVI ADPCM block whose declared sample count exceeds the output allocation, then writes decoded samples past that heap buffer. The target must process the untrusted file; exploitation can crash the consuming application or corrupt memory in its security context.
The record
- CVE
- CVE-2026-19387
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 10
- Classifications
- CWE-787, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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