Is CVE-2022-40009 actively exploited?

No active exploitation of CVE-2022-40009 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-40009 be exploited remotely?

Yes. CVE-2022-40009 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-40009?

CVE-2022-40009 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-40009

CWE-416Published: September 20, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

SWFTools commit 772e55a was discovered to contain a heap-use-after-free via the function grow_unicode at /lib/ttf.c.

NVD Source

Risk Analysis

This vulnerability is a heap-use-after-free flaw in SWFTools that can lead to critical system impact. Given the CVSS score of 9.8, it is considered highly urgent as it allows for remote exploitation without authentication.

There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog.

Recommended Action

Users should update to a version of SWFTools that addresses the heap-use-after-free issue in lib/ttf.c.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-40009 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-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.