CVE-2009-0669

CVE-2009-0669 is a high-severity vulnerability in Zope Zodb with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 3% (86th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Zope Zodb
• Published: 2009-08-07
• Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.

How severe is CVE-2009-0669?

CVE-2009-0669 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-0669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0669?

CVE-2009-0669 primarily affects Zope Zodb. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0669?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2009-0669 published?

CVE-2009-0669 was published on 2009-08-07 and last updated on 2026-06-16.

References

• http://mail.zope.org/pipermail/zope-announce/2009-August/002220.html
• http://osvdb.org/56826
• http://pypi.python.org/pypi/ZODB3/3.8.2#whats-new-in-zodb-3-8-2
• http://secunia.com/advisories/36204
• http://secunia.com/advisories/36205
• http://www.securityfocus.com/bid/35987
• http://www.vupen.com/english/advisories/2009/2217
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52379

Affected products (3)

• cpe:2.3:a:zope:zodb:*:*:*:*:*:*:*:*
• cpe:2.3:a:zope:zodb:3.8:*:*:*:*:*:*:*
• cpe:2.3:a:zope:zodb:3.8.0:*:*:*:*:*:*:*

More vulnerabilities in Zope Zodb

• CVE-2009-0668 — Medium (CVSS 6.5): Unspecified vulnerability in Zope Object Database (ZODB) before 3.8.2, when certain Zope Enterprise Objects (ZEO)…
• CVE-2009-2701 — Medium (CVSS 6.0): Unspecified vulnerability in the Zope Enterprise Objects (ZEO) storage-server functionality in Zope Object Database…
• CVE-2010-3495 — Medium (CVSS 4.3): Race condition in ZEO/StorageServer.py in Zope Object Database (ZODB) before 3.10.0 allows remote attackers to cause a…

All CVEs affecting Zope Zodb →

Other CWE-287 (Improper Authentication) vulnerabilities

• CVE-2026-20317 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering…
• CVE-2026-19977 — Critical (CVSS 10.0): A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function…
• CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
• CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
• CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
• CVE-2026-62825 — Critical (CVSS 10.0): Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-287 (Improper Authentication) vulnerabilities →