CVE-2020-0169Public exploitNetwork attack vector

Media extractor hang via unchecked RTTTL parsing

Published Jun 11, 2020 · Updated Aug 4, 2024

Denial of service in Android 10's RTTTL media parser allows remote attackers to hang media extraction through a crafted MIDI file. RTTTL_Event in eas_rtttl.c omits a bounds check while processing attacker-controlled ringtone data, permitting an infinite or extremely long loop. Exploitation requires no privileges but requires a user to process the crafted file; the bounded impact is interruption of the media extractor service.

CVSS severity6.5
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Android 10's RTTTL media parser allows remote attackers to hang media extraction through a crafted MIDI file. RTTTL_Event in eas_rtttl.c omits a bounds check while processing attacker-controlled ringtone data, permitting an infinite or extremely long loop. Exploitation requires no privileges but requires a user to process the crafted file; the bounded impact is interruption of the media extractor service.

The record

CVE
CVE-2020-0169
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-20, CWE-835, CWE-834
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

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-834Excessive Iteration

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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