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Not in CISA KEV
HIGH severity

CVE-2010-3198 — zope

HIGHFix: zopefoundation/Zope@0f2f56f

CVE-2010-3198 is a high-severity (CVSS 7.5) vulnerability in zope. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for zope — see the affected versions and patch details below.

Zope Denial of Service (DoS) vulnerability in ZServer

Also known asPYSEC-2010-32
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
1 known
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk
0.39%0.94%1.49%2.04%0.9%1.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
🐍zope🐍zope

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

ZServer in Zope 2.10.x before 2.10.12 and 2.11.x before 2.11.7 allows remote attackers to cause a denial of service (crash of worker threads) via vectors that trigger uncaught exceptions.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIzope≥ 2.10.0&&< 2.10.122.10.12pip install --upgrade 'zope==2.10.12'
🐍PyPIzope≥ 2.11.0&&< 2.11.72.11.7pip install --upgrade 'zope==2.11.7'

Affected Products

1 product · 27 configurations
Application
zopezope
27 versions
2.10.0-b12.10.0-b22.10.0-c12.10.0-final2.10.22.10.2-b12.10.2-final2.10.32.10.3-final2.10.4-final2.10.52.10.6
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

ZServer in Zope 2.10.x before 2.10.12 and 2.11.x before 2.11.7 allows re…

bugs.launchpad.netNVDSep 2010

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zope, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update zope to 2.10.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2010-3198 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

ZServer in Zope 2.10.x before 2.10.12 and 2.11.x before 2.11.7 allows remote attackers to cause a denial of service (crash of worker threads) via vectors that trigger uncaught exceptions.
O3 Security · Impact-Aware SCA

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CVE-2010-3198: zope DoS — Fixed in 2.10.12