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TI-2023-28722 Aliases CVE-2023-52339GHSA-vmjp-26xc-5h39

In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading…

Priority MEDIUM 62CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01097 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:matroska:libebml:*:*:*:*:*:*:*:*before 1.4.5VulnerableMatroska
  • cpe:2.3:a:matroska:libebml:*:*:*:*:*:*:*:* Versions before 1.4.5 Vulnerable ·Matroska

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-52339
  2. 2026-10-03 Alias added: GHSA-vmjp-26xc-5h39

References

Exploit 1

Patch 1

Advisory 2

Other 2

  • TI-2015-07235 Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3… CVSS 3.0CRITICAL 9.6
  • TI-2021-02372 Out-of-bounds write in libebml CVSS 3.1MEDIUM 6.5
  • TI-2015-07236 The EbmlUnicodeString::UpdateFromUTF8 function in libEBML before 1.3.3 allows… CVSS 3.0MEDIUM 4.3
  • TI-2015-07237 The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows… CVSS 3.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences