Security readout for executives and security teams
Plain-English summary
CVE-2022-35062 is a heap buffer overflow reported in OTFCC commit 617837b, affecting the otfccdump component. The main business impact is availability: processing a malicious or malformed input could crash the tool or related service. The source bundle does not identify a vendor-supported affected product list or patched version.
Executive priority
Treat this as a moderate operational risk. Prioritize remediation where font processing is internet-facing, automated, or business-critical. Lower priority is reasonable for isolated research systems that do not process untrusted files.
Technical view
The CVE describes CWE-787 out-of-bounds write behavior in /release-x64/otfccdump+0x6c0bc3. CVSS 3.1 is 6.5 with high availability impact, no confidentiality or integrity impact, and user interaction required. Structured affected vendor, product, CPE, and version data are not provided.
Likely exposure
Exposure is most likely where OTFCC or otfccdump processes untrusted font files, especially in web upload flows, automated conversion pipelines, CI jobs, or security research tooling. The bundle does not prove broad commercial product exposure.
Exploitation context
The CVE is not listed as KEV in the supplied data. A public GitHub reference appears to contain proof-of-concept material, but the bundle does not show confirmed active exploitation in the wild.
Researcher notes
Evidence is sparse. The record gives an address-style crash location and CWE-787 classification, but no structured affected product, fixed version, or vendor advisory. Validate exposure by actual OTFCC usage, not by CPE matching.
Mitigation direction
- Check OTFCC upstream guidance for a fixed release or commit.
- Avoid processing untrusted font files with affected otfccdump builds.
- Run font processing in a sandbox with resource limits.
- Restrict public upload workflows that invoke OTFCC.
- Monitor vendor and CVE updates for clarified affected versions.
Validation and detection
- Inventory systems using OTFCC or otfccdump.
- Identify whether those systems process externally supplied fonts.
- Map deployed builds to commit 617837b or nearby revisions.
- Confirm sandboxing around font parsing workflows.
- Review logs for crashes during font processing.
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-2022-35062 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/10KZeJTraCRuFED4y6Dv0XyPA-QJydKSa/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/otfcc/CVE-2022-35062.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.