What it is
CVE-2015-5123 is an unauthenticated vulnerability affecting Adobe Flash Player. Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2015-5123
Flash Player Denial of Service
Adobe / Flash Player
- Severity
- CVSS 9.8 · Critical
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 18.5%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.
Who is affected?
Adobe / Flash Player.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Flash Player Denial of Service
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.
- Published
- 14 Jul 2015
- Exploitation Reported
- 13 Apr 2022
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
linux
cisa
windows
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2015-5123
- SUSE-SU-2015:1255 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028...
- HPSBMU03409 marc.info · Vendor Advisory http://marc.info/?l=bugtraq&m=144050155601375&w=2
- SUSE-SU-2015:1258 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029...
- GLSA-201508-01 security.gentoo.org · Vendor Advisory https://security.gentoo.org/glsa/201508-01
- HPSBHF03509 h20564.www2.hp.com · Vendor Advisory https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docI...
- RHSA-2015:1235 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2015-1235.html
- openSUSE-SU-2015:1267 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032...
- TA15-195A us-cert.gov · Third-Party Advisory http://www.us-cert.gov/ncas/alerts/TA15-195A
- VU#918568 kb.cert.org · Third-Party Advisory http://www.kb.cert.org/vuls/id/918568
- 1032890 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1032890
- 75710 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/75710
- blog.trendmicro.com/trendlabs-security-intelligence/new-zero-day... blog.trendmicro.com · CVE Record http://blog.trendmicro.com/trendlabs-security-intelligence/new-zero-d...
- helpx.adobe.com/security/products/flash-player/apsb15-18.html helpx.adobe.com · CVE Record https://helpx.adobe.com/security/products/flash-player/apsb15-18.html
- helpx.adobe.com/security/products/flash-player/apsa15-04.html helpx.adobe.com · CVE Record https://helpx.adobe.com/security/products/flash-player/apsa15-04.html
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CISA
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-04-13 00:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
9.8
Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
18.5%
Weaknesses
All CVSS Scores
CVSS v3.1
9.8
Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
10.0
High
AV:N/AC:L/Au:N/C:C/I:C/A:C
Timeline
From disclosure to observed exploitation
-
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2015-5123
Free JSON includes basic KEV fields{
"cve_id": "CVE-2015-5123",
"confidence": "Confirmed",
"cvss_score": 9.8,
"cvss_estimated": false,
"epss_score": 0.18493,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
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