CVE-2022-47665Public exploit

Code execution via stale image-dimension allocation

Published Mar 3, 2023 · Updated Mar 7, 2025

Heap buffer overflow in libde265 1.0.9 allows attackers to crash the decoder or execute code through a crafted H.265 bitstream. When image dimensions change without changing the total coding-tree-block count, alloc_image retains ctb_info with stale dimensions, and set_SliceAddrRS writes a two-byte slice address past that heap allocation. A user or automated decoding workflow must open the crafted file; the demonstrated result is a decoder abort, while code execution is a published impact rather than a demonstrated exploit.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Heap buffer overflow in libde265 1.0.9 allows attackers to crash the decoder or execute code through a crafted H.265 bitstream. When image dimensions change without changing the total coding-tree-block count, alloc_image retains ctb_info with stale dimensions, and set_SliceAddrRS writes a two-byte slice address past that heap allocation. A user or automated decoding workflow must open the crafted file; the demonstrated result is a decoder abort, while code execution is a published impact rather than a demonstrated exploit.

The record

CVE
CVE-2022-47665
Published
Mar 3, 2023
Updated
Mar 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

7.8NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo