Security readout for executives and security teams
Plain-English summary
CVE-2020-9746 affects Adobe Flash Player 32.0.0.433 and earlier. A malicious response could trigger a crash and potentially arbitrary code execution, but exploitation requires user interaction and difficult conditions. Treat remaining Flash use as urgent legacy risk, especially where business workflows still depend on it.
Executive priority
High priority for organizations with any remaining Flash dependency. The product is legacy, the potential impact includes code execution, and vulnerable installations may indicate unmanaged software risk. If Flash is absent, business urgency is low after verification.
Technical view
The issue is a CWE-476 NULL pointer dereference in Adobe Flash Player. The CVSS 3.1 score is 7.0 high, with local attack vector, high complexity, no privileges required, required user interaction, and high confidentiality, integrity, and availability impact. The source states malicious strings in an HTTP response delivered over TLS/SSL are required.
Likely exposure
Exposure is most likely on endpoints or legacy browser workflows that still run Adobe Flash Player version 32.0.0.433 or earlier. The provided sources do not identify specific operating systems, browsers, or deployment configurations beyond Flash Player itself.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation is described as requiring malicious HTTP response content, default TLS/SSL delivery, user interaction, and high attack complexity.
Researcher notes
Evidence is limited to the CVE record and Adobe advisory reference. Do not assume exploit availability, affected platforms, or patch versions from this bundle alone. Validation should focus on precise Flash Player version discovery and confirmation against Adobe APSB20-58.
Mitigation direction
- Identify Adobe Flash Player deployments at version 32.0.0.433 or earlier.
- Review Adobe APSB20-58 and apply the vendor-documented remediation.
- Prioritize removing or isolating Flash-dependent workflows until vendor guidance is applied.
- Restrict exposure of systems that must temporarily keep affected Flash versions.
Validation and detection
- Confirm inventories show no Adobe Flash Player 32.0.0.433 or earlier.
- Check endpoint software records for unmanaged or legacy Flash installations.
- Verify any exception systems have documented compensating controls.
- Confirm remediation aligns with Adobe APSB20-58, not an assumed fix.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
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-2020-9746 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/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.
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7HighVector: CVSS:3.1/AV:L/AC:H/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/apsb20-58.htmlCVE reference · x_refsource_MISC
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.