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CVE-2025-71116 is an out-of-bounds read vulnerability in the Linux kernel's libceph component, specifically in decode_pool(). When parsing a Ceph OSD map, the function relied on the encoded ceph_pg_pool envelope length for bounds validation. If an osdmap is maliciously corrupted so that the encoded envelope length is smaller than required for the specified encoding version, decode_pool() can read past the end of the expected buffer while decoding or skipping fields. The upstream fix hardens the parser by adding explicit bounds checks for each field processed by decode_pool().
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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.
If you can’t patch tonight, do this now.
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.
10 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.