CVE-2022-47664Public exploit

Decoder crash via out-of-bounds SSE read

Published Mar 3, 2023 · Updated Mar 7, 2025

Heap buffer overflow in libde265 1.0.9 allows context-dependent attackers to crash an HEVC decoder via a crafted bitstream. The ff_hevc_put_hevc_qpel_pixels_8_sse interpolation routine reads 16 bytes beyond a heap-allocated image buffer while decoding malformed prediction data. Execution requires the target to decode the supplied file with SSE acceleration enabled; the published proof demonstrates an abort, while code execution was not demonstrated.

CVSS severity7.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in libde265 1.0.9 allows context-dependent attackers to crash an HEVC decoder via a crafted bitstream. The ff_hevc_put_hevc_qpel_pixels_8_sse interpolation routine reads 16 bytes beyond a heap-allocated image buffer while decoding malformed prediction data. Execution requires the target to decode the supplied file with SSE acceleration enabled; the published proof demonstrates an abort, while code execution was not demonstrated.

The record

CVE
CVE-2022-47664
Published
Mar 3, 2023
Updated
Mar 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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