Security readout for executives and security teams
Plain-English summary
This vulnerability affects Adobe Acrobat Reader and can expose sensitive memory if a user opens a malicious file. Its main business risk is information disclosure that could help an attacker bypass protections like ASLR. It requires user interaction and is not listed as known exploited in the provided sources.
Executive priority
Treat this as a routine but real endpoint patching priority. The issue requires user action and is not confirmed exploited here, but it can expose memory and weaken exploit mitigations, making timely remediation appropriate for document-heavy teams.
Technical view
CVE-2022-34237 is a CWE-416 use-after-free issue in Acrobat Reader font parsing. A local, unauthenticated attacker needs a victim to open a malicious file. The CVSS 3.1 score is 5.5, with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Organizations with Adobe Acrobat Reader versions 22.001.20142 and earlier, 20.005.30334 and earlier, or 17.012.30229 and earlier are potentially exposed, especially users who open external PDFs or documents from untrusted sources.
Exploitation context
The provided sources do not show active exploitation or KEV listing. Exploitation requires a malicious file to be opened by a victim, and the stated outcome is memory disclosure that may assist bypassing mitigations such as ASLR.
Researcher notes
The evidence supports a confidentiality-focused use-after-free in Acrobat Reader font parsing. The bundle does not provide exploit details, indicators of compromise, or specific fixed versions beyond the Adobe bulletin reference, so validation should rely on version inventory and Adobe guidance.
Mitigation direction
- Review Adobe APSB22-32 and apply the Acrobat Reader security update it specifies.
- Prioritize endpoints that regularly open external or unsolicited PDF files.
- Restrict use of affected Reader versions until patched or replaced.
- Use established email and web controls to reduce malicious file delivery.
Validation and detection
- Inventory Acrobat Reader versions across managed endpoints.
- Flag versions 22.001.20142, 20.005.30334, 17.012.30229, and earlier.
- Confirm patched systems are no longer on the affected version lines.
- Review document-handling workflows for users receiving untrusted files.
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-416: 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-2022-34237 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.
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:N1.83.6Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/acrobat/apsb22-32.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.