Security readout for executives and security teams
Plain-English summary
CVE-2022-35030 is a crash vulnerability in OTFCC's otfccdump component. The public record describes a segmentation violation in commit 617837b. Business impact is primarily availability: systems that automatically process untrusted font files could be disrupted. The source bundle does not identify packaged products, versions, or a vendor fix.
Executive priority
Handle as a moderate availability risk. Prioritize teams that process fonts from customers, partners, or the internet. The sparse vendor/version data lowers certainty, but automated font-processing services could face disruption if they run the affected code path.
Technical view
The CVE maps to CWE-787 and CVSS 3.1 score 6.5: network-accessible attack path, low complexity, no privileges, user interaction required, and high availability impact. The described failure is a segmentation violation in otfccdump at a specific release-x64 offset. Evidence is too sparse to infer code execution or confidentiality impact.
Likely exposure
Exposure is most likely where OTFCC or otfccdump processes externally supplied font files, especially in automated conversion, validation, upload, or CI workflows. The CVE data lists affected vendor, product, versions, and CPEs as n/a, so asset mapping requires local inventory.
Exploitation context
The bundle references a public PoC page, but KEV is false and no cited source confirms active exploitation. The CVSS vector requires user interaction, consistent with processing a crafted input rather than direct unauthenticated compromise. Treat exploitation evidence as limited to crash demonstration unless additional sources confirm more.
Researcher notes
The record is thin: affected product metadata is n/a, no fix is named, and the root cause is described only as a segmentation violation plus CWE-787. Do not assume RCE from the provided evidence. Focus research on reproducing crash conditions safely, version mapping, and upstream remediation status.
Mitigation direction
- Identify and restrict OTFCC or otfccdump use on untrusted font files.
- Check upstream OTFCC guidance for fixed commits, releases, or workarounds.
- Run font processing in sandboxed, resource-limited workers.
- Add queue isolation so parser crashes do not stop critical services.
- Avoid internet-facing automated processing until exposure is confirmed.
Validation and detection
- Inventory systems and pipelines invoking OTFCC or otfccdump.
- Confirm whether they process user-supplied or third-party fonts.
- Check deployed build provenance against commit 617837b and later upstream guidance.
- Review crash logs for otfccdump segmentation faults during font handling.
- Verify parser failures are contained and monitored.
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-2022-35030 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
- 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/15y2h3Z7LR3mgpoQ2QE2yM_my9i8A77AA/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/otfcc/CVE-2022-35030.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.