ImageMagick has stack write buffer overflow in MNG encoder

Description

==2265506==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffec4971310 at pc 0x55e671b8a072 bp 0x7ffec4970f70 sp 0x7ffec4970f68
WRITE of size 1 at 0x7ffec4971310 thread T0

References

• ImageMagick/ImageMagick security advisory · WEB
• nvd.nist.gov/vuln/detail/CVE-2026-28690 · ADVISORY
• ImageMagick/ImageMagick · PACKAGE
• dlemstra/Magick.NET release 14.10.4 · WEB

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