CVE-2022-33047
CWE-787Published: July 6, 2022· Updated: Jul 9, 2026
Official Description
OTFCC v0.10.4 was discovered to contain a heap buffer overflow after free via otfccbuild.c.
Risk Analysis
OTFCC contains a heap buffer overflow vulnerability that can be triggered via otfccbuild.c. This critical flaw could lead to arbitrary code execution if a malicious font file is processed.
There is no known public exploit, and it is not in the CISA KEV catalog. The vulnerability is remotely exploitable.
Users should update to a version of OTFCC that includes a fix for the heap buffer overflow.
Technical Analysis
CVE-2022-33047 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-33047 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts