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Cairo through 1.18.4, as used in Poppler through 25.08.0, has an "unscaled->face == NULL" assertion failure for _cairo_ft_unscaled_font_fini in cairo-ft-font.c.

CVE-2025-50422 is a low-severity vulnerability identified in the Cairo graphics library, specifically affecting versions through 1.18.4. Cairo is a widely used 2D graphics library that provides vector graphics rendering and is commonly integrated into various software projects, including Poppler, a PDF rendering library (up to version 25.08.0). The vulnerability is classified under CWE-617, which pertains to reachable assertions. In this case, the issue arises from an assertion failure triggered when the internal pointer 'unscaled->face' is NULL during the execution of the function _cairo_ft_unscaled_font_fini in the cairo-ft-font.c source file. This assertion failure leads to a program crash or denial of service (DoS) condition. The CVSS v3.1 base score is 2.9, indicating low severity, with the vector AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L. This means the attack requires local access (AV:L), high attack complexity (AC:H), no privileges (PR:N), no user interaction (UI:N), unchanged scope (S:U), and impacts only availability (A:L) without affecting confidentiality or integrity. No known exploits are reported in the wild, and no patches are currently linked. The vulnerability does not allow code execution or data manipulation but can cause application crashes when processing certain font data, potentially impacting software stability that relies on Cairo for font rendering.

Detailed information about CVE-2025-50422: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2025-50422: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-50422: CWE-617 Reachable Assertion in cairographics Cairo

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