Security readout for executives and security teams
Plain-English summary
This CVE describes a heap buffer overflow in OTFCC's otfccdump tool at commit 617837b. The main business risk is availability: processing a malicious or malformed font could crash the tool or any service depending on it. The source bundle does not identify affected release versions or a vendor fix.
Executive priority
Treat this as a moderate availability risk. Prioritize review if font processing is internet-facing, automated, or tied to customer workflows. Lower urgency if OTFCC is absent or only used manually on trusted files.
Technical view
CVE-2022-35038 is a CWE-787 heap buffer overflow in /release-x64/otfccdump+0x6b064d. CVSS 3.1 is 6.5 with network attack vector, low complexity, no privileges, user interaction required, and high availability impact only. Affected vendor, product, CPE, and versions are listed as n/a.
Likely exposure
Exposure is most likely where OTFCC or otfccdump processes fonts from users, partners, crawlers, CI pipelines, or content conversion workflows. Exact affected release mapping is not provided, so teams must verify local use and commit lineage.
Exploitation context
The bundle lists public reference material, including a GitHub PoC path, but KEV is false and no cited source states active exploitation. User interaction is required in CVSS terms, likely meaning a crafted file must be processed.
Researcher notes
The CVE record is sparse: affected vendor/product/version data is n/a, and no patch is named in the bundle. Analysis should center on local asset discovery, commit comparison, trust boundaries for font inputs, and whether public crash material matches deployed builds.
Mitigation direction
- Inventory systems and pipelines that use OTFCC or otfccdump.
- Avoid processing untrusted font files until exposure is understood.
- Run font parsing in a sandboxed, resource-limited environment.
- Check upstream OTFCC guidance for fixed commits or releases.
- Reduce availability impact by isolating conversion workers from critical services.
Validation and detection
- Confirm whether deployed OTFCC builds include or descend from commit 617837b.
- Review upload, conversion, and CI workflows for untrusted font processing.
- Verify parser failures cannot take down user-facing services.
- Check vendor or upstream issue history for remediation guidance.
- Document any compensating sandboxing or file-source restrictions.
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-787: 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-2022-35038 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/1jhHvfkoD7fuMWbrhYxbOnJaSeW-Y2lKI/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/otfcc/CVE-2022-35038.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.