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CVE-2024-11477 is a remote code execution vulnerability in 7-Zip affecting versions earlier than 24.07. The flaw exists in the implementation of Zstandard decompression, where insufficient validation of attacker-controlled archive data can trigger an integer underflow prior to a memory write. By supplying a specially crafted archive or compressed file that is processed by the vulnerable decompression logic, an attacker may corrupt memory and achieve arbitrary code execution in the context of the current process. The issue has also been described as a ZSTD-related buffer overflow condition arising from the underflow-driven memory corruption.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in 7-Zip caused by insufficient validation of user input in the Zstandard decompression implementation, allowing an unauthenticated attacker to trigger an integer underflow via a specially crafted file if a user opens it.
A buffer overflow vulnerability in 7-Zip related to ZSTD handling, referenced by CVE.
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.