CVE-2020-0194Network attack vector

Remote code execution via HEVC count overflow

Published Jun 11, 2020 · Updated Aug 4, 2024

Out-of-bounds write in Android 10's media framework allows remote attackers to execute code through a crafted HEVC file. ihevcd_parse_slice_header adds num_long_term_pics to reference-picture counts using a narrow integer, allowing overflow to bypass the decoded-picture-buffer limit before indexed writes. Exploitation requires user interaction but no additional execution privileges, and successful corruption grants code execution in the decoder process.

CVSS severity8.8
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Android 10's media framework allows remote attackers to execute code through a crafted HEVC file. ihevcd_parse_slice_header adds num_long_term_pics to reference-picture counts using a narrow integer, allowing overflow to bypass the decoded-picture-buffer limit before indexed writes. Exploitation requires user interaction but no additional execution privileges, and successful corruption grants code execution in the decoder process.

The record

CVE
CVE-2020-0194
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-190, CWE-787, T1204.002, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=Android-10

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:P/I:P/A:P

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CWE-787Out-of-bounds Write
T1204.002Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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