Security readout for executives and security teams
Plain-English summary
This CVE describes a crash in OTFCC's otfccdump tool when it processes a crafted input. Business impact is mainly availability: systems or workflows that automatically inspect untrusted fonts could fail or be disrupted. The sources do not identify a vendor advisory, fixed version, or broad product list.
Executive priority
Handle as a moderate availability issue. Prioritize if font processing is internet-facing, automated, or business-critical. Lower urgency is reasonable where OTFCC is absent or only used manually on trusted files.
Technical view
CVE-2022-35028 is reported against OTFCC commit 617837b as a segmentation violation in release-x64/otfccdump at offset 0x4fbbb6. It is classified as CWE-787 with CVSS 3.1 score 6.5, requiring user interaction and causing high availability impact without confidentiality or integrity impact.
Likely exposure
Exposure appears limited to environments using OTFCC otfccdump, especially automated font analysis or conversion pipelines handling untrusted files. The source bundle lists affected vendor, product, versions, and CPEs as n/a.
Exploitation context
The CVE references public proof-of-concept material, but the bundle does not cite CISA KEV listing or confirmed active exploitation. Treat it as a denial-of-service risk from malicious or malformed font input, not as proven real-world exploitation.
Researcher notes
Evidence is sparse: the record names a commit, binary offset, CWE-787, and CVSS vector, but not a vendor-maintained affected-version range or fix. Avoid extrapolating beyond OTFCC otfccdump and validate exposure from local asset evidence.
Mitigation direction
- Inventory any use of OTFCC or otfccdump in build, upload, or analysis workflows.
- Avoid processing untrusted fonts with affected OTFCC builds until vendor guidance is confirmed.
- Isolate font-processing jobs with resource limits and failure containment.
- Monitor the upstream OTFCC project and CVE record for fixed commits or releases.
- Replace or disable exposed automated font parsing where business impact is low.
Validation and detection
- Search repositories, containers, and build scripts for OTFCC and otfccdump usage.
- Identify whether binaries map to commit 617837b or nearby unpatched builds.
- Review upload and processing paths that accept user-supplied font files.
- Confirm crash containment for font-processing workers and queues.
- Track CVE and upstream references for authoritative remediation details.
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
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ATT&CK lookup starting points
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CWE-787: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-35028 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://drive.google.com/file/d/15hma-XPdkV0NfZZweuyYuxa8rMAfKbRG/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/otfcc/CVE-2022-35028.mdCVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.