Security readout for executives and security teams
CVE-2015-5123 is a memory-safety flaw in Adobe Flash Player that could let crafted Flash content run code or crash the process. It was exploited in the wild in July 2015 and is listed in CISA KEV, so any remaining Flash use deserves urgent inventory and removal or patching. Exposure is most likely on legacy desktops, browsers, or embedded workflows that still allow Adobe Flash Player or Flash content. Environments that fully removed Flash are unlikely to be affected, but this should be verified through asset and software inventory rather than assumed. Treat this as a high-priority legacy exposure issue. The main business risk is not new Flash deployment, but forgotten Flash dependencies on old systems that can convert user interaction with malicious content into code execution. Mitigation focus: Apply Adobe Flash Player fixes referenced in APSB15-18 where Flash remains installed.; Remove or disable Flash Player where business use is no longer required.; Check OS and vendor advisories for packaged Flash updates..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-416: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2015-5123 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/flash-player/apsb15-18.htmlCVE reference · x_refsource_CONFIRM
- GLSA-201508-01CVE reference · vendor-advisory, x_refsource_GENTOO
- HPSBHF03509CVE reference · vendor-advisory, x_refsource_HP
- https://helpx.adobe.com/security/products/flash-player/apsa15-04.htmlCVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-5123CVE reference · government-resource
- https://github.com/cisagov/vulnrichment/issues/196CVE reference · issue-tracking
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.