Actively exploited in the wild
FreeType Out-of-Bounds Write Vulnerability
FreeType - FreeType · Listed in the CISA KEV since 2025-05-06. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2025-27363
HighCVSS 8.1KEVSummary
W FreeType w wersjach 2.13.0 i poniżej występuje podatność związana z zapisem poza przydzielonym obszarem pamięci podczas próby analizy struktur subglyph związanych z plikami TrueType GX i czcionkami zmiennymi. W wyniku błędnego przypisania wartości do bufora, możliwe jest zapisanie do 6 wartości typu long poza przydzielonym obszarem.
Risk Assessment
Podatność ta może prowadzić do wykonania dowolnego kodu, co stwarza poważne zagrożenie dla bezpieczeństwa systemów korzystających z podatnych wersji FreeType. Istnieje możliwość, że ta luka została już wykorzystana w atakach w rzeczywistości.
Recommendation
Zaleca się aktualizację FreeType do wersji nowszej niż 2.13.0, aby usunąć tę podatność. Należy również monitorować systemy pod kątem potencjalnych exploitów związanych z tą luką.
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Original NVD description (English source)
An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulnerable) when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and then adds a static value causing it to wrap around and allocate too small of a heap buffer. The code then writes up to 6 signed long integers out of bounds relative to this buffer. This may result in arbitrary code execution. This vulnerability may have been exploited in the wild.