XMP Toolkit 2021.07 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-42528
• https://helpx.adobe.com/security/products/xmpcore/apsb21-108.html
• https://lists.debian.org/debian-lts-announce/2023/09/msg00032.html