Use After Free in Adobe Flash Player
CVE-2016-7855
Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.
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: 0.252 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.252 · newest: 0.252 · change: 0.000
Affected products
- Adobe Flash Player
- Apple Mac OS X
- Google Chrome OS
- Linux Kernel
- Microsoft Windows
- Microsoft Windows 10 — versions 1511, 1607
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2012 — versions r2
- Red Hat Enterprise Linux Desktop — versions 5.0, 6.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: The impacted product is end-of-life and should be disconnected if still in use.
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/201610-10 (vendor-advisory, Third Party Advisory)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-128 (vendor-advisory, Patch, Vendor Advisory)
- www.securitytracker.com/id/1037111 (VDB Entry, Third Party Advisory, vdb-entry)
- helpx.adobe.com/security/products/flash-player/apsb16-36.html (Patch, Vendor Advisory)
- rhn.redhat.com/errata/RHSA-2016-2119.html (vendor-advisory, Third Party Advisory)
- security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html (Third Party Advisory)
- www.securityfocus.com/bid/93861 (VDB Entry, Third Party Advisory, vdb-entry)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2016-7855?
- CVE-2016-7855 is a high-severity vulnerability in Adobe Flash Player, classified under Use After Free. CVSS score: 8.8/10. Published 2016-11-01.
- How severe is CVE-2016-7855?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2016-7855 known to be exploited?
- Yes. CVE-2016-7855 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.