Security readout for executives and security teams
Plain-English summary
A malicious PDF can trigger a font-parsing flaw in older Adobe Acrobat Reader DC versions. If a user opens the crafted file, code may run with that user’s privileges. This is serious for organizations where PDFs arrive by email, portals, or external file exchange.
Executive priority
Treat this as a high-priority endpoint remediation item, especially for PDF-heavy business teams. It is not documented as actively exploited in the supplied sources, but successful exploitation could give an attacker user-level code execution.
Technical view
CVE-2022-27794 is a CWE-824 uninitialized-variable issue in Acrobat Reader DC embedded font processing. Affected versions include 22.001.20085 and earlier, 20.005.3031x and earlier, and 17.012.30205 and earlier. The CVSS 3.0 score is 7.8 with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on endpoints running affected Acrobat Reader DC tracks that routinely open externally supplied PDFs. Impact is limited by required user interaction, but common document workflows make that condition realistic.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires a victim to open a crafted PDF, so phishing, business email compromise, or shared-document workflows are the main concern.
Researcher notes
Evidence is sufficient for affected product, vulnerability class, user-interaction requirement, and CVSS impact. The supplied bundle does not include exploit availability, indicators of compromise, or exact fixed build numbers, so validation should rely on Adobe APSB22-16.
Mitigation direction
- Review Adobe APSB22-16 for the applicable Acrobat Reader update guidance.
- Upgrade affected Acrobat Reader DC installations per Adobe’s advisory.
- Restrict or sandbox externally sourced PDFs where feasible.
- Prioritize systems used for email, finance, legal, support, and document intake.
Validation and detection
- Inventory Acrobat Reader DC versions across managed endpoints.
- Compare installed versions with the affected ranges in Adobe APSB22-16.
- Confirm update deployment succeeded on each Acrobat Reader track.
- Review endpoint telemetry for suspicious PDF-driven process activity.
- Check whether high-risk users still run affected versions.
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
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CWE-824: 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-2022-27794 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/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.
SSVC decision data
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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9adobeVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/acrobat/apsb22-16.htmlCVE reference, adobe · 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.
Access of Uninitialized Pointer
Access of Uninitialized Pointer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.