How severe is CVE-1999-0427?

CVE-1999-0427 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-1999-0427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0427?

CVE-1999-0427 primarily affects Qualcomm Eudora. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0427?

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-1999-0427 published?

CVE-1999-0427 was published on 2000-05-01 and last updated on 2026-06-16.

CVE-1999-0427

CVE-1999-0427 is a high-severity vulnerability in Qualcomm Eudora 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% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Qualcomm Eudora
Published: 2000-05-01
Last modified: 2026-06-16

Description

Eudora 4.1 allows remote attackers to perform a denial of service by sending attachments with long file names.

Frequently asked questions

What is CVE-1999-0427?: Eudora 4.1 allows remote attackers to perform a denial of service by sending attachments with long file names.
How severe is CVE-1999-0427?: CVE-1999-0427 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0427?: CVE-1999-0427 primarily affects Qualcomm Eudora. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0427?: 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-1999-0427 published?: CVE-1999-0427 was published on 2000-05-01 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0427

Affected products (4)

cpe:2.3:a:qualcomm:eudora:4.2:*:*:*:*:*:*:*
cpe:2.3:a:qualcomm:eudora:4.3:*:*:*:*:*:*:*
cpe:2.3:a:qualcomm:eudora_light:3.0:*:*:*:*:*:*:*
cpe:2.3:a:qualcomm:eudora_pro:1.00:*:*:*:*:*:*:*

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