Analyst readout for executives and security teams
Plain-English summary
A malicious PDF or similar Adobe file could run code if opened by a user on an affected Adobe Acrobat Reader DC version. The impact is high because successful exploitation runs with the user’s privileges, but the provided sources require user interaction and do not show known active exploitation.
Executive priority
Prioritize remediation for users who receive external documents, such as finance, legal, HR, sales, and support. This is not listed as actively exploited in the provided data, but arbitrary code execution through user-opened files is a credible business risk.
Technical view
CVE-2020-24430 is a CWE-416 use-after-free in Acrobat Reader DC handling of malicious JavaScript. Affected version tracks include 2020.012.20048 and earlier, 2020.001.30005 and earlier, and 2017.011.30175 and earlier. CVSS 3.1 is 7.8: local attack vector, low complexity, no privileges, user interaction required.
Likely exposure
Exposure is most likely on workstations where users have affected Adobe Acrobat Reader DC versions and can open untrusted documents from email, web downloads, or shared storage. The bundle names Acrobat Reader DC; the title references Acrobat Pro DC, so product scope should be confirmed against Adobe APSB20-67.
Exploitation context
The sources say exploitation requires a victim to open a malicious file. They do not identify public exploitation, weaponized campaigns, or CISA KEV listing. Treat this as a high-impact client-side document risk rather than confirmed active exploitation.
Researcher notes
The bundle has a product naming gap: the title says Acrobat Pro DC, while affected data names Acrobat Reader DC. Avoid expanding affected scope without Adobe advisory confirmation. No exploit details, indicators, or fixed version data are provided beyond the Adobe bulletin link.
Mitigation direction
- Check Adobe APSB20-67 for vendor-approved fixed versions and update guidance.
- Upgrade or remove affected Acrobat Reader DC installations.
- Restrict JavaScript and risky document features where business workflows allow.
- Reduce delivery risk with email attachment filtering and user warnings.
- Prioritize managed endpoints handling external documents.
Validation and detection
- Inventory Acrobat Reader DC versions across managed endpoints.
- Flag versions 2020.012.20048, 2020.001.30005, 2017.011.30175, and earlier.
- Confirm whether Acrobat Pro DC is covered in Adobe APSB20-67.
- Review endpoint telemetry for suspicious document-open events around Adobe Reader.
- Verify patch deployment through software management or EDR inventory.
Public sources used
Based on public source material and reviewed before publication.
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
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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-2020-24430 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- 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.
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/acrobat/apsb20-67.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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.