CVE-2023-45510Public exploitNetwork attack vector

Process crash via mismatched Matroska stream deallocation

Published Oct 12, 2023 · Updated Sep 18, 2024

Mismatched memory management in tsMuxer git-2539d07 allows context-dependent attackers to crash the process via a crafted Matroska file. MatroskaDemuxer::matroska_add_stream allocates a stream array with new[], but MatroskaDemuxer::readClose releases it with scalar delete. The target must process the supplied MKV file; the demonstrated consequence is an AddressSanitizer abort, with no grounded data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Mismatched memory management in tsMuxer git-2539d07 allows context-dependent attackers to crash the process via a crafted Matroska file. MatroskaDemuxer::matroska_add_stream allocates a stream array with new[], but MatroskaDemuxer::readClose releases it with scalar delete. The target must process the supplied MKV file; the demonstrated consequence is an AddressSanitizer abort, with no grounded data disclosure or modification.

The record

CVE
CVE-2023-45510
Published
Oct 12, 2023
Updated
Sep 18, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-762, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-762Mismatched Memory Management Routines
T1204.002Malicious File

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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