Use After Free in Adobe Flash Player
CVE-2016-6921
Use-after-free vulnerability in Adobe Flash Player before 18.0.0.375 and 19.x through 23.x before 23.0.0.162 on Windows and OS X and before 11.2.202.635 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-4272, CVE-2016-4279, CVE-2016-6923, CVE-2016-6925, CVE-2016-6926, CVE-2016-6927, CVE-2016-6929, CVE-2016-6930, CVE-2016-6931, and CVE-2016-6932.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.060 (93.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201610-10 (vendor-advisory, Third Party Advisory)
- helpx.adobe.com/security/products/flash-player/apsb16-29.html (Patch, Vendor Advisory)
- rhn.redhat.com/errata/RHSA-2016-1865.html (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/92927 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.securitytracker.com/id/1036791 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2016-6921?
- CVE-2016-6921 is a high-severity vulnerability in Adobe Flash Player, classified under Use After Free. CVSS score: 8.8/10. Published 2016-09-14.
- How severe is CVE-2016-6921?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2016-6921 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.