CVE-2009-0669

Zope Object Database (ZODB) before 3.8.2, when certain Zope Enterprise Objects (ZEO) database sharing is enabled, allows remote attackers to bypass authentication via vectors involving the ZEO network protocol.

Published: 2009-08-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-0669 is rated Moderate Risk (61.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.86%). Core evidence: EPSS rose +2.21% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-0669

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.65% 2.86% +2.21%
2 2026-04-22 0.55% 0.65% +0.10%
3 2025-03-30 0.55%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0669

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2009-0669

GitHub Security Advisory for CVE-2009-0669

GHSA-5432-c996-hvhj · Severity: high · Ecosystem: pip — Zope Object Database (ZODB) Authentication bypass in ZEO storage servers

OS Trackers for CVE-2009-0669

vendor priority summary link
redhat medium https://access.redhat.com/security/cve/CVE-2009-0669
ubuntu medium CVE-2009-0669 medium priority: Ubuntu including 6 source packages (zodb, zope2.10, zope2.11, zope2.8, zope2.9, zope3), 60 status rows across 10 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 32, ignored 10, released 8, not-affected 6, needs-triage 4. https://ubuntu.com/security/CVE-2009-0669

Affected software / configurations for CVE-2009-0669

Vendor Product Version Raw CPE
zope zodb <= 3.8.1 cpe:2.3:a:zope:zodb:*:*:*:*:*:*:*:*
zope zodb 3.8 cpe:2.3:a:zope:zodb:3.8:*:*:*:*:*:*:*
zope zodb 3.8.0 cpe:2.3:a:zope:zodb:3.8.0:*:*:*:*:*:*:*

References for CVE-2009-0669

cvelogic Threat Intelligence