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CVE-2015-2590 is an unspecified vulnerability in Oracle Java SE affecting Java SE 6u95, 7u80, and 8u45, and Java SE Embedded 7u75 and 8u33. Oracle described it only as a flaw related to Libraries and noted it was distinct from CVE-2015-4732. The available content indicates it was exploitable remotely and was used as a Java zero-day in 2015 by the Sednit/Sofacy/APT28 threat group, including in Sedkit-driven operations to deliver first-stage malware such as JHUHUGIT.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Java zero-day vulnerability used by the Sofacy group to deliver the JHUHUGIT implant in targeted attacks.
A specific vulnerability cited as one of multiple zero-days leveraged by APT28; the statement does not provide technical details beyond its use as a zero-day.
A 2015 Java vulnerability listed among the zero-days exploited by the Sednit group.
A Java vulnerability exploited by Sedkit as a 0-day in targeted attacks.
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.