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CVE-2026-34714 is a code execution vulnerability in Vim affecting versions prior to 9.2.0272. The flaw is triggered when Vim opens a crafted file in the default configuration. The issue is caused by %{expr} injection in tabpanel handling when the relevant component lacks P_MLE protections, allowing attacker-controlled expression content to be evaluated during file processing. Because exploitation occurs immediately upon opening the malicious file and does not require non-default settings, the vulnerability presents a direct path from crafted content to command execution within the context of the Vim process.
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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.
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.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.