InfoSecBulletin Cybersecurity for mankind
Oracle has issued an emergency update to fix a serious security issue in its E-Business Suite, which has been targeted in recent Cl0p data theft attacks.
The critical vulnerability, CVE-2025-61882 (CVSS score: 9.8), could let an unauthenticated attacker with HTTP access compromise the Oracle Concurrent Processing component.
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“This vulnerability is remotely exploitable without authentication, i.e., it may be exploited over a network without the need for a username and password,” Oracle said in an advisory. “If successfully exploited, this vulnerability may result in remote code execution.”
In a separate alert, Oracle’s Chief Security Officer Rob Duhart said the company has released fixes for CVE-2025-61882 to “provide updates against additional potential exploitation that were discovered during our investigation.”
The zero-day vulnerability in Oracle has been reported, following news of Cl0p ransomware targeting Oracle E-Business Suite. Mandiant, owned by Google, called this a “high-volume email campaign” using many hacked accounts.
In a post shared on LinkedIn, Charles Carmakal, CTO of Mandiant at Google Cloud, said “Cl0p exploited multiple vulnerabilities in Oracle EBS which enabled them to steal large amounts of data from several victims in August 2025,” adding “multiple vulnerabilities were exploited including vulnerabilities that were patched in Oracle’s July 2025 update as well as one that was patched this weekend (CVE-2025-61882).”
“Given the broad mass zero-day exploitation that has already occurred (and the n-day exploitation that will likely continue by other actors), irrespective of when the patch is applied, organizations should examine whether they were already compromised,” Carmakal noted.
