CVE-2010-3495: Zope Zodb

Medium severity, CVSS 4.3. EPSS: 1.3% chance of exploitation in the next 30 days.

Race condition in ZEO/StorageServer.py in Zope Object Database (ZODB) before 3.10.0 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.

Affected products

• Zope Zodb: up to and including 3.9.7; version 2.8.11 only; version 2.9.11 only; version 2.10.9 only; version 2.11.4 only; version 3.1 only; …

Published 2010-10-19. Last modified 2026-06-16.