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CVE-2026-48514

HIGH · CVSS 7.5 EPSS %0.23 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-22T22:16:48.230 · Çekilme zamanı: 2026-06-30T18:29:45.004220+00:00

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Detaylı analiz gerekiyor.

Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

GitHub PoC Linkleri

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-48514
Severity
HIGH
CVSS
7.5
EPSS
%0.23

Orijinal NVD Açıklaması

MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, UnsafeBlitFormatterBase<T>.Deserialize reads an attacker-controlled byteLength from an extension payload and allocates an array based on that value before validating it against the extension header length or remaining payload bytes. The outer extension header is bounded by available input, but that bound is not used to constrain the inner byteLength before allocation. A very small payload can therefore request a very large T[] allocation. This vulnerability is fixed in 2.5.301 and 3.1.7.