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Fencer Intel
high 7.8

CVE-2015-5119 kev in the critical feed json

Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.29…

published 11y ago modified 4mo ago also EUVD-2015-5134

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2022-03-03
epss
98.6%
EPSS 98.6% chance of exploitation in 30 days, percentile 99.9%
public exploits
2
Metasploit and Exploit-DB

Summary

Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.296 and 14.x through 18.0.0.194 on Windows and OS X and 11.x through 11.2.202.468 on Linux allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

Patch / fix

cisa required action The impacted product is end-of-life and should be disconnected if still in use.

  • flashplugin-nonfree Ubuntu 14.04 LTS 11.2.202.481ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-5119

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • flash-plugin RHEL 5 EXTRAS 11.2.202.481-1.el5
  • flash-plugin RHEL 6 EXTRAS 11.2.202.481-1.el6_6

red hat advisories RHSA-2015:1214

  • flash-player SLED 12, SLE Workstation Extension 12 11.2.202.481-93.1

suse advisories SUSE-SU-2015:1211-1

Is CVE-2015-5119 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-5119 updated cvss 6.8

flash-plugin: code execution issue in APSA15-03 / APSB15-16

  • Red Hat Enterprise Linux Desktop Supplementary (v. 5) flash-plugin 11.2.202.481-1.el5 Red Hat Enterprise Linux Desktop Supplementary (v. 6) flash-plugin 11.2.202.481-1.el6_6 Red Hat Enterprise Linux Server Supplementary (v. 5) flash-plugin 11.2.202.481-1.el5 Red Hat Enterprise Linux Server Supplementary (v. 6) flash-plugin 11.2.202.481-1.el6_6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) flash-plugin 11.2.202.481-1.el6_6
    fixed: vendor fix RHSA-2015:1214

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Found exploited as a 0-day (Project Zero)
  2. First public exploit (Metasploit exploit/multi/browser/adobe_flash_hacking_team_uaf)
  3. 0-day patched (Project Zero)
  4. Published
  5. Added to CISA KEV
  6. CISA patch deadline
  7. CISA SSVC: exploitation active

Known exploited

Added
4y ago
Patch by
2022-03-24 (4y ago)
Ransomware
Not known
Required action
The impacted product is end-of-life and should be disconnected if still in use.
Vendor, product
Adobe, Flash Player
CISA name
Adobe Flash Player Use-After-Free Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Found
2015-07-05
Patched
2015-07-08
Details
project zero tracker

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1059.007 JavaScript exploitation
  • T1203 Exploitation for Client Execution exploitation
  • T1204.001 Malicious Link exploitation
  • T1566.002 Spearphishing Link exploitation
  • T1105 Ingress Tool Transfer primary impact
  • T1055.001 Dynamic-link Library Injection secondary impact
  • T1071.001 Web Protocols secondary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
11mo ago

Exploit prediction

98.62% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.