NVD / CVE Program· CNA adobe

CVE-2015-5122: Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through…

CriticalCVSS 9.8 · v3.1KEVWeaponized Fix available

Noroxi assessment

Priority: Now (action score 95/100)

CISA has confirmed exploitation in the wild (Apr 13, 2022). Remediation deadline for US federal agencies: May 4, 2022.
A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
Probability of exploitation in the next 30 days: 87% (FIRST EPSS); higher than 99.7% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: flash-plugin (Red Hat:rhel_extras:5::client) 0:11.2.202.491-1.el5; flash-plugin (Red Hat:rhel_extras:6) 0:11.2.202.491-1.el6_6; flash-player (SUSE:Linux Enterprise Desktop 11 SP3) 11.2.202.491-0.11.1.

Patch today or shut off access. Upgrade to flash-plugin (Red Hat:rhel_extras:5::client) 0:11.2.202.491-1.el5; flash-plugin (Red Hat:rhel_extras:6) 0:11.2.202.491-1.el6_6; flash-player (SUSE:Linux Enterprise Desktop 11 SP3) 11.2.202.491-0.11.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.

Published: Jul 14, 2015
Updated: Jun 16, 2026
EPSS: 87.0% · 99th percentile
CWE: CWE-416

Report tools

JSON

Action score

Now

Patch today or shut off access.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 26 / 30 · 87.0%

CISA SSVC decision

Exploitation: active
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Apr 13, 2022. That signals real attacks, not theory.

Remediation deadline for US federal agencies: May 4, 2022.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
adobe	flash player	cpe:2.3:a:adobe:flash_player
adobe	flash player desktop runtime	cpe:2.3:a:adobe:flash_player_desktop_runtime
apple	macos	cpe:2.3:o:apple:macos
microsoft	windows	cpe:2.3:o:microsoft:windows
linux	linux kernel	cpe:2.3:o:linux:linux_kernel
microsoft	windows 8	cpe:2.3:o:microsoft:windows_8
microsoft	windows 8.1	cpe:2.3:o:microsoft:windows_8.1
redhat	enterprise linux desktop	cpe:2.3:o:redhat:enterprise_linux_desktop
redhat	enterprise linux server	cpe:2.3:o:redhat:enterprise_linux_server
redhat	enterprise linux server eus	cpe:2.3:o:redhat:enterprise_linux_server_eus
redhat	enterprise linux workstation	cpe:2.3:o:redhat:enterprise_linux_workstation
opensuse	evergreen	cpe:2.3:o:opensuse:evergreen

and 2 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

adobe flash player13.0 and later · up to 13.0.0.302 inclusive
adobe flash player18.0 and later · up to 18.0.0.203 inclusive
adobe flash player18.0 and later · up to 18.0.0.204 inclusive
adobe flash player11.0 and later · up to 11.2.202.481 inclusive
adobe flash player desktop runtime18.0 and later · up to 18.0.0.203 inclusive
opensuse evergreen11.4
redhat enterprise linux desktop5.0
redhat enterprise linux desktop6.0

+8 more rows

redhat enterprise linux server5.0
redhat enterprise linux server6.0
redhat enterprise linux server eus6.6
redhat enterprise linux workstation5.0
redhat enterprise linux workstation6.0
suse linux enterprise desktop11
suse linux enterprise desktop12
suse linux enterprise workstation extension12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Red Hat:rhel_extras:5::client	flash-plugin	before 0:11.2.202.491-1.el5	0:11.2.202.491-1.el5
Red Hat:rhel_extras:6	flash-plugin	before 0:11.2.202.491-1.el6_6	0:11.2.202.491-1.el6_6
SUSE:Linux Enterprise Desktop 11 SP3	flash-player	before 11.2.202.491-0.11.1	11.2.202.491-0.11.1
SUSE:Linux Enterprise Desktop 12	flash-player	before 11.2.202.491-96.1	11.2.202.491-96.1

Same product

adobe: all records

Other highest-scoring records for the same primary product.

CVE-2015-5119Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through…KEV
99Now
CVE-2015-3113Heap-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…KEV
99Now
CVE-2014-0497Integer underflow in Adobe Flash Player before 11.7.700.261 and 11.8.x through 12.0.x before 12.0.0.44 on Windows and Mac OS X, and before…KEV
99Now

Published before and after this one in the same product

← EarlierCVE-2015-5117Jul 9, 2015 · Use-after-free vulnerability in Adobe Flash Player before 13.0.0.302 and 14.x through 18.x before 18.0.0.203 on Windows and OS X and before…
42Plan
← EarlierCVE-2015-5118Jul 9, 2015 · Heap-based buffer overflow in Adobe Flash Player before 13.0.0.302 and 14.x through 18.x before 18.0.0.203 on Windows and OS X and before…
48Plan
Later →CVE-2015-5123Jul 14, 2015 · Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through…KEV
75This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
red hat:flash-plugin	0:11.2.202.491-1.el5 · Red Hat:rhel_extras:5::client	Package registry (OSV)
suse:flash-player	11.2.202.491-96.1 · SUSE:Linux Enterprise Desktop 12	Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Metasploit module ×1
Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Exploit-DB entry	remote	2015-07-13
Metasploit module	exploit/multi/browser/adobe_flash_opaque_background_uafAdobe Flash opaqueBackground Use After Freeexploit	2015-07-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

MetasploitJul 6, 2015-8 d
First PoCJul 13, 2015-1 d
PublishedJul 14, 2015
CISA KEVApr 13, 2022+2465 d
TodayNov 14, 2026+4141 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:45 PM UTC

For records you follow, these changes also arrive as notifications. →

References

lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: adobe

CVE.org (CNA)Nov 17, 2025, 10:01 PM UTC
CISA ADPNov 17, 2025, 10:01 PM UTC
NVDJun 16, 2026, 8:28 PM UTC
FIRST EPSSNov 11, 2026, 12:00 AM UTC
OSV / GHSANov 13, 2026, 3:18 AM UTC
Exploit-DBNov 13, 2026, 3:17 AM UTC
MetasploitNov 13, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.