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CVE-2021-0577

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This...

7.8 HighFix available

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.14%Down 0.3 points since Jul 15, 2021
90%50%10%1%

What each source reports

NVD Score used 7.8

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771

Record
CVE-2021-0577
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771

Record
CVE-2021-0577
Updated
2026-11-02
EUVDEUVD-2021-3196 No score

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771

Record
EUVD-2021-3196
Updated
2026-11-03
GitHub AdvisoriesGHSA-q4m2-mj96-fjx2 No score

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This...

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771

Record
GHSA-q4m2-mj96-fjx2
Weakness
CWE-787
Updated
2026-11-02
OSVASB-A-187161771 No score

In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Record
ASB-A-187161771
Updated
2026-11-10

Affected products

Affected packages

Affected packages
PackageAffectedFixed
:unknown:
Android
SoCVersion:0 up to SoCVersion:2021-07-05, plus listed versions
SoCVersion
SoCVersion:2021-07-05

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-0577 is a high vulnerability (CVSS 7.8) in Google Android, published July 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in :unknown: SoCVersion:2021-07-05.

References

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