CVE-2010-4533

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.0% (62nd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fixed version is listed under Patch Availability — apply it.

offlineimap before 6.3.4 added support for SSL server certificate validation but it is still possible to use SSL v2 protocol, which is a flawed protocol with multiple security deficiencies.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fixed version is listed under Patch Availability. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
62nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fixed version is listed under Patch Availability. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

November 13, 2019

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Oct 7, 2026
Fixed version listed under Patch Availability. Sources: redhat.
generic

oss-security - CVE Request -- OfflineIMAP -- 1), failed to validate remote SSL server certificate 2), allows SSLv2 protocol

https://www.openwall.com/lists/oss-security/2010/12/23/2
generic

CVE-2010-4533

https://security-tracker.debian.org/tracker/CVE-2010-4533
redhatMentions a patch (unverified)

665386 – (CVE-2010-4533) CVE-2010-4533 OfflineIMAP: Disable SSLv2 protocol

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4533
genericMentions a patch (unverified)

#606962 - python2.6: ssl module defaults to insecure SSLv2 - Debian Bug report logs

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606962
redhatMentions a patch (unverified)

CVE-2010-4533 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/cve-2010-4533

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
debian:10offlineimap @ 6.3.4-1 (fixes >=0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 135 total refreshes for this CVE.

  1. 2026-10-09 20:00 UTCEPSS rescore
  2. 2026-10-08 16:34 UTCEPSS rescore
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  8. 2026-09-29 08:12 UTCEG score recompute
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  12. 2026-07-23 01:03 UTCEG score recompute
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  72. 2026-06-13 22:57 UTCEPSS rescore
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  74. 2026-06-12 23:08 UTCEPSS rescore
  75. 2026-06-11 13:56 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2010-4533?
CVE-2010-4533 is a critical vulnerability published on November 13, 2019. offlineimap before 6.3.4 added support for SSL server certificate validation but it is still possible to use SSL v2 protocol, which is a flawed protocol with multiple security deficiencies.
When was CVE-2010-4533 disclosed?
CVE-2010-4533 was first published on November 13, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-4533 actively exploited?
CVE-2010-4533 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (62nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2010-4533?
CVE-2010-4533 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2010-4533?
A fixed version for CVE-2010-4533 is listed under Patch Availability on this page: update to the version listed for your package.

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