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CVE-2015-5123· NVD / CVE Program· CNA adobe

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.30

Noroxi assessment

Priority: This week (action score 75/100)

  • CISA has confirmed exploitation in the wild (Apr 13, 2022). Remediation deadline for US federal agencies: May 4, 2022.
  • Probability of exploitation in the next 30 days: 18.8% (FIRST EPSS); higher than 97.2% 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.

Don’t wait for the next maintenance window. 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 BitmapData 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 overrides a valueOf function, as exploited in the wild in July 2015.

CriticalCVSS 9.8 · v3.1KEVWeaponized Fix available
Published
Jul 14, 2015
Updated
Jun 16, 2026
EPSS
18.8% · 97th percentile

Report tools

JSON

Action score

75

This week

Don’t wait for the next maintenance window.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
6 / 30 · 18.8%

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.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
adobeflash player
adobeflash player desktop runtime
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server eus
redhatenterprise linux workstation
opensuseevergreen
suselinux enterprise desktop
suselinux enterprise workstation extension
linuxlinux kernel
applemacos
microsoftwindows

Affected versions

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

  • adobe flash player11.0 and later · up to 11.2.202.481 inclusive
  • adobe flash player18.0 and later · up to 18.0.0.203 inclusive
  • adobe flash player13.0 and later · up to 13.0.0.302 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
  • 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.

EcosystemPackageAffected rangeFix
Red Hat:rhel_extras:5::clientflash-pluginbefore 0:11.2.202.491-1.el50:11.2.202.491-1.el5
Red Hat:rhel_extras:6flash-pluginbefore 0:11.2.202.491-1.el6_60:11.2.202.491-1.el6_6
SUSE:Linux Enterprise Desktop 11 SP3flash-playerbefore 11.2.202.491-0.11.111.2.202.491-0.11.1
SUSE:Linux Enterprise Desktop 12flash-playerbefore 11.2.202.491-96.111.2.202.491-96.1

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 13.0.0.296KEV
    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 11KEV
    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 1KEV
    99Now

Published before and after this one in the same product

  • ← 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 11
    48Plan
  • ← EarlierCVE-2015-5122Jul 14, 2015 · Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0KEV
    97Now
  • Later →CVE-2015-5127Aug 13, 2015 · Use-after-free vulnerability in Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before
    55Plan

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
red hat:flash-plugin0:11.2.202.491-1.el5 · Red Hat:rhel_extras:5::clientPackage registry (OSV)
suse:flash-player11.2.202.491-96.1 · SUSE:Linux Enterprise Desktop 12Package 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.

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.

  1. Published
  2. CISA KEV+2465 d
  3. TodayOct 21, 2026+4117 d
EPSS, last 120 days

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

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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

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

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&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✗ → ✓

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

References

Show all references (15 more)

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

All records