CVE-2015-3113 — Flash Player
CRITICALCVE-2015-3113 is a critical-severity (CVSS 9.8) Out-of-bounds Write vulnerability in adobe flash player. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-04-13) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.
Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-04-13. Federal agencies were required to remediate by 2022-05-04.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2015-3113.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2015-3113 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in June 2015.
Affected Products
flash playeradobeinsight orchestrationhpsystem management homepagehpsystems insight managerhpversion control agenthpversion control repository managerhpResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Adobe Flash Player - Nellymoser Audio Decoding Buffer Overflow (Metasploit)
by Metasploit · Jul 8, 2015
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every adobe flash player deployment and check each version against the affected-products list above.
Fix
Apply the adobe flash player security patch or hotfix for CVE-2015-3113 on the affected version, following the vendor advisory for your exact build.
Workarounds
Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Enterprise Linux 5 Supplementary | flash-plugin-0:11.2.202.468-1.el5 | RHSA-2015:1184 |
Frequently Asked Questions
Is CVE-2015-3113 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.