Linuxsecurity Critical Remote Code Execution Vulnerability in c3p0 Affects Multiple Ubuntu Versions
Article Content
- •c3p0 JDBC library has critical remote code execution vulnerabilities.
- •Affected Ubuntu versions include 26.04 LTS and earlier releases.
- •Immediate updates are required to mitigate potential exploitation.
A critical remote code execution vulnerability was discovered in the c3p0 JDBC connection pooling library, affecting multiple versions of Ubuntu. Attackers can exploit this vulnerability using maliciously crafted serialized objects and JNDI references to execute arbitrary code, bypass security restrictions, or cause denial of service. The vulnerabilities are identified as CVE-2026-27727, CVE-2026-27830, CVE-2026-55153, and CVE-2026-55223. Affected Ubuntu versions include 26.04 LTS, 24.04 LTS, 22.04 LTS, 20.04 LTS, and 18.04 LTS. Users are advised to update their systems to the latest package versions to mitigate the risks. A standard system update will apply the necessary changes. The vulnerabilities were published between February and July 2026, indicating a significant window for potential exploitation.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (2)
Following this threat?
Track Ubuntu and CVE-2026-27727 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
CVE-2015-3306 Exploited in ProFTPD FTP Servers CVE-2015-3306, a vulnerability in ProFTPD 1.3.5, allows remote attackers to read and write arbitrary files using the SITE CPFR and SITE CPTO commands. This exploit can lead to unauthorized access and potential remote code execution, as the commands are executed with the privileges of the ProFTPD service. Active… 
CISA Mandates Urgent Patching of Five Critical Flaws Exploited by Flax Typhoon The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch five critical vulnerabilities by October 11, 2026, following exploitation by the China-linked hacking group Flax Typhoon. The vulnerabilities, added to CISA's Known Exploited Vulnerabilities (KEV) catalog, include…