CVE-2023-48014Public exploit

Memory corruption via HEVC VPS stack overwrite

Published Nov 15, 2023 · Updated Aug 29, 2024

Stack-buffer overflow in GPAC 2.3-DEV-rev566-g50c2ab06f-master allows attackers to corrupt memory by processing crafted HEVC data. The splitting_flag path indexes dim_bit_offset at num_scalability_types, allowing a crafted VPS with 16 scalability types to write one byte beyond the 16-element stack array. The demonstrated trigger requires processing an attacker-supplied HEVC file with MP4Box; the published proof of concept causes an AddressSanitizer abort, while code-execution impact is not demonstrated.

CVSS severity7.8
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-buffer overflow in GPAC 2.3-DEV-rev566-g50c2ab06f-master allows attackers to corrupt memory by processing crafted HEVC data. The splitting_flag path indexes dim_bit_offset at num_scalability_types, allowing a crafted VPS with 16 scalability types to write one byte beyond the 16-element stack array. The demonstrated trigger requires processing an attacker-supplied HEVC file with MP4Box; the published proof of concept causes an AddressSanitizer abort, while code-execution impact is not demonstrated.

The record

CVE
CVE-2023-48014
Published
Nov 15, 2023
Updated
Aug 29, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

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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