How severe is CVE-2000-1138?

CVE-2000-1138 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2000-1138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-1138?

CVE-2000-1138 primarily affects Ibm Lotus Notes. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-1138?

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-2000-1138 published?

CVE-2000-1138 was published on 2001-01-09 and last updated on 2026-06-16.

CVE-2000-1138

CVE-2000-1138 is a high-severity vulnerability in Ibm Lotus Notes 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.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Lotus Notes
Published: 2001-01-09
Last modified: 2026-06-16

Description

Lotus Notes R5 client R5.0.5 and earlier does not properly warn users when an S/MIME email message has been modified, which could allow an attacker to modify the email in transit without being detected.

Frequently asked questions

What is CVE-2000-1138?: Lotus Notes R5 client R5.0.5 and earlier does not properly warn users when an S/MIME email message has been modified, which could allow an attacker to modify the email in transit without being detected.
How severe is CVE-2000-1138?: CVE-2000-1138 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2000-1138 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-1138?: CVE-2000-1138 primarily affects Ibm Lotus Notes. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-1138?: 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-2000-1138 published?: CVE-2000-1138 was published on 2001-01-09 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:ibm:lotus_notes:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_notes:5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_notes:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_notes:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_notes:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_notes:5.0.4:*:*:*:*:*:*:*

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