CVE-2021-0613

Local information disclosure via incorrect bounds check

Published Oct 25, 2021 · Updated Aug 3, 2024

Out-of-bounds read in MediaTek ASF Extractor on Android 10.0 and 11.0 allows local users to disclose data via crafted ASF content. An incorrect bounds check lets the extractor read beyond the intended buffer while parsing attacker-controlled ASF data. Exploitation requires local access but needs no added execution privileges or user interaction, and the consequence is limited to information disclosure.

CVSS severity5.5
Medium
EPSS probability0.12%
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 read in MediaTek ASF Extractor on Android 10.0 and 11.0 allows local users to disclose data via crafted ASF content. An incorrect bounds check lets the extractor read beyond the intended buffer while parsing attacker-controlled ASF data. Exploitation requires local access but needs no added execution privileges or user interaction, and the consequence is limited to information disclosure.

The record

CVE
CVE-2021-0613
Published
Oct 25, 2021
Updated
Aug 3, 2024
Vendor
MediaTek
Product
ASF Extractor
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 10.0, 11.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

MediaTek · ASF Extractorversion=Android 10.0, 11.0

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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