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CVE-2026-55256 is a critical Android System vulnerability caused by improper input validation in parsePartHeaders implementations across multiple unspecified files. A remotely supplied malformed input processed by the affected header-parsing code can trigger a persistent denial-of-service condition.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical denial-of-service vulnerability in Android System.
Critical Android System denial-of-service vulnerability affecting Android 14, 15, 16, 16 QPR2, and 17.
An improper input-validation vulnerability in parsePartHeaders across multiple files that can enable persistent remote denial of service without user interaction or additional execution privileges.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.