CVE-2022-47092Public exploit

Process crash via unchecked HEVC shift exponent

Published Jan 5, 2023 · Updated Apr 10, 2025

Integer overflow in GPAC MP4Box 2.1-DEV-rev574-g9d5bb184b allows attackers to corrupt parser state via crafted HEVC data. The gf_hevc_read_sps_bs_internal function adds two Exp-Golomb-decoded block-size values and uses the unchecked sum as a 32-bit left-shift exponent. Processing attacker-supplied HEVC content is required, and the demonstrated result is a sanitizer-detected parser failure with data-structure corruption.

CVSS severity7.1
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in GPAC MP4Box 2.1-DEV-rev574-g9d5bb184b allows attackers to corrupt parser state via crafted HEVC data. The gf_hevc_read_sps_bs_internal function adds two Exp-Golomb-decoded block-size values and uses the unchecked sum as a 32-bit left-shift exponent. Processing attacker-supplied HEVC content is required, and the demonstrated result is a sanitizer-detected parser failure with data-structure corruption.

The record

CVE
CVE-2022-47092
Published
Jan 5, 2023
Updated
Apr 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record 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

7.1NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

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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