Security readout for executives and security teams
Plain-English summary
CVE-2022-35037 is a heap buffer overflow reported in an OTFCC otfccdump build. A specially crafted input could crash the tool, creating a denial-of-service risk. The public data does not identify affected packaged products, versions, or a vendor fix.
Executive priority
Treat this as a moderate operational risk, not a broad enterprise emergency. Prioritize teams that run font-processing automation on customer, supplier, or internet-sourced files because the known impact is service disruption rather than data theft.
Technical view
The record describes CWE-787 in OTFCC commit 617837b, observed at /release-x64/otfccdump+0x6adb1e. CVSS 3.1 is 6.5: network-reachable attack vector, low complexity, no privileges, user interaction required, and high availability impact only.
Likely exposure
Exposure is most plausible where OTFCC or otfccdump processes externally supplied font files, especially in automated conversion, validation, or analysis pipelines. The source data lists affected vendor, product, versions, and CPEs as n/a, so asset matching requires local inventory.
Exploitation context
The CVE is not listed as KEV in the provided bundle. A public GitHub PoC reference exists, but the supplied evidence does not show active exploitation in the wild. Do not treat this as exploited unless new vendor, KEV, or threat intelligence confirms it.
Researcher notes
The public record is sparse: it names a heap buffer overflow location and CVSS vector, but lacks normalized affected versions, patch details, and exploit-in-the-wild evidence. Validate exposure through binary provenance and upstream commit history rather than 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 tools in a sandboxed, low-privilege environment.
- Restrict automated ingestion of externally supplied font samples.
- Monitor pipelines for otfccdump crashes or memory-safety failures.
Validation and detection
- Inventory systems and build pipelines using OTFCC or otfccdump.
- Identify whether any build traces to commit 617837b or nearby vulnerable code.
- Confirm whether deployed binaries are replaced by an upstream fixed version.
- Review crash logs for heap-buffer-overflow failures in otfccdump.
- Verify untrusted font processing is sandboxed or disabled.
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-2022-35037 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/12SuaaZOa_I7ndwttQqaLWkBTWcIfTgu9/view?usp=sharingCVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/otfcc/CVE-2022-35037.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.