CVE-2016-4121

highpriority · track · 43EPSS 0.100 · 96 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

10.0% (96th) EPSS

CVSS 7.5 · high

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.352 and 19.x through 21.x before 21.0.0.242 on Windows and OS X and before 11.2.202.621 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1097, CVE-2016-1106, CVE-2016-1107, CVE-2016-1108, CVE-2016-1109, CVE-2016-1110, CVE-2016-4108, and CVE-2016-4110.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimary

affected products (9)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
adobe air desktop runtime≤ 21.0.0.198nvdUScpe:2.3:a:adobe:air_desktop_runtime:*:*:*:*:*:*:*:*
adobe air sdk≤ 21.0.0.198nvdUScpe:2.3:a:adobe:air_sdk:*:*:*:*:*:*:*:*
adobe air sdk & compiler≤ 21.0.0.198nvdUScpe:2.3:a:adobe:air_sdk_\&_compiler:*:*:*:*:*:*:*:*
adobe flash player≤ 21.0.0.241nvdUScpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe flash player≤ 21.0.0.216nvdUScpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe flash player≤ 18.0.0.343nvdUScpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe flash player≤ 11.2.202.616nvdUScpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
adobe flash player desktop runtime≤ 21.0.0.226nvdUScpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2016-06-16modified 2026-06-17

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+12281 more

references (12)

External citations — patches, advisories, analysis.

scry

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