Security readout for executives and security teams
Plain-English summary
This is a document-opening risk in Adobe Acrobat Reader. A malicious file can make Reader read beyond allocated memory and expose information that may help defeat protections such as ASLR. It is not described as remote server compromise, but it matters on endpoints that routinely open PDFs from email, web downloads, or third parties.
Executive priority
Treat this as a routine but important endpoint patching issue. It is not identified as actively exploited in the provided sources, but it can weaken memory protections and support more serious attacks if users open malicious files.
Technical view
CVE-2022-28263 is a CWE-125 out-of-bounds read in Acrobat Reader DC when parsing a crafted file. The CVSS 3.1 vector is local, low complexity, no privileges, user interaction required, unchanged scope, high confidentiality impact, and no integrity or availability impact. Adobe lists affected Reader DC 22.001.2011x, 20.005.3033x, and 17.012.3022x and earlier.
Likely exposure
Exposure is most likely on user workstations with Adobe Acrobat Reader DC versions at or below the affected build lines, especially where users open externally supplied PDFs or files. The source bundle does not identify server products, browser-only exposure, or non-Reader Adobe products as affected.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not marked KEV. Exploitation requires a victim to open a malicious file. The practical risk is as an information-disclosure primitive, potentially helping a broader exploit chain bypass memory mitigations such as ASLR.
Researcher notes
The evidence supports an out-of-bounds read during crafted file parsing with confidentiality impact and possible ASLR bypass. No exploit details, in-the-wild evidence, or complete fixed-version matrix are included in the bundle. Use Adobe APSB22-16 as the authoritative remediation reference.
Mitigation direction
- Check Adobe APSB22-16 for the applicable Reader update path.
- Upgrade Acrobat Reader beyond the affected build line.
- Prioritize endpoints handling external PDFs or attachments.
- Limit opening unsolicited files until patched.
- Use email and web controls to reduce malicious file delivery.
Validation and detection
- Inventory Acrobat Reader DC versions across endpoints.
- Compare builds against 22.001.2011x, 20.005.3033x, and 17.012.3022x thresholds.
- Confirm Adobe APSB22-16 remediation is deployed.
- Review endpoint telemetry for suspicious Reader crashes or malicious file detections.
- Verify users with high document exposure are patched first.
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-125: 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 lookupCVE-2022-28263 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N1.83.6adobeVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.