What is CVE-2016-4121?

CVE-2016-4121 is a critical-severity vulnerability in Adobe Air_desktop_runtime, classified under Use After Free. CVSS score: 9.8/10. Published 2016-06-16.

How severe is CVE-2016-4121?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-4121 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Adobe Air_desktop_runtime

CVE-2016-4121

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 differe…

Vulnerability class: Use-After-Free

EPSS: 0.159 (94.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

GLSA-201606-08 (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
psirt@adobe.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
90797 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID, Broken Link)
RHSA-2016:1079 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2016-4121?: CVE-2016-4121 is a critical-severity vulnerability in Adobe Air_desktop_runtime, classified under Use After Free. CVSS score: 9.8/10. Published 2016-06-16.
How severe is CVE-2016-4121?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-4121 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.