What is CVE-2021-42204?

CVE-2021-42204 is a high-severity vulnerability in Swftools, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-06-02.

How severe is CVE-2021-42204?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Swftools

CVE-2021-42204

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

Vulnerability class: Buffer Overflow

EPSS: 0.012 (66.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Swftools
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-42204?: CVE-2021-42204 is a high-severity vulnerability in Swftools, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-06-02.
How severe is CVE-2021-42204?: High severity. CVSS v3 base score is 7.8 out of 10.