CVE-2021-42199

7.8 highEPSS 1.2%

High (7.8) in swftools swftools. EPSS 1.2% chance of exploitation in the next 30 days.

An issue was discovered in swftools through 20201222. A heap buffer overflow exists in the function swf_FontExtract_DefineTextCallback() located in swftext.c. It allows an attacker to cause code execution.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2022-06-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

swftools:swftools

References

https://github.com/matthiaskramm/swftools/issues/173
https://github.com/matthiaskramm/swftools/issues/173

Check your stack JSON