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CVE-2026-5773 is an incorrect SMB(S) connection-reuse vulnerability in libcurl's connection pool. A logical error can cause a new transfer to reuse an existing SMB connection to the same server even when that connection is associated with a different SMB share. The transfer consequently executes against the connection context for the wrong share, despite using the same server name and credentials.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
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.
28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An important-severity vulnerability with a CVSS v3 network-accessible, low-complexity, no-privileges, no-user-interaction vector and high confidentiality impact.
Unknown; the content provides only a reference link and no vulnerability details.
A network-reachable, low-complexity vulnerability in curl/libcurl addressed in Huawei EulerOS. The supplied CVSS v3 vector indicates no privileges or user interaction are required and high confidentiality impact; exploits are reported as available.
A network-reachable, low-complexity vulnerability in the EulerOS curl/libcurl package with no privileges or user interaction required and high confidentiality impact, according to the plugin's CVSS vector.
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.