CVE-2022-43244Public exploitNetwork attack vector

Decoder crash via out-of-bounds motion-compensation read

Published Nov 2, 2022 · Updated May 5, 2025

Heap-buffer overflow in libde265 1.0.8 allows context-dependent attackers to crash the decoder via a crafted H.265 video bitstream. During inter-frame luma prediction, put_qpel_fallback reads a two-byte sample 112 bytes beyond an allocated image buffer. A user or automated system must process the file; the published proof of concept terminates the AddressSanitizer-instrumented decoder.

CVSS severity6.5
Medium
EPSS probability0.90%
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 1.0.8 allows context-dependent attackers to crash the decoder via a crafted H.265 video bitstream. During inter-frame luma prediction, put_qpel_fallback reads a two-byte sample 112 bytes beyond an allocated image buffer. A user or automated system must process the file; the published proof of concept terminates the AddressSanitizer-instrumented decoder.

The record

CVE
CVE-2022-43244
Published
Nov 2, 2022
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 2, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002User Execution: Malicious 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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