How severe is CVE-2003-1382?

CVE-2003-1382 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2003-1382 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1382?

CVE-2003-1382 affects Instantservers Inc. Ismail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-1382?

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-2003-1382 published?

CVE-2003-1382 was published on 2003-12-31 and last updated on 2026-06-16.

CVE-2003-1382

CVE-2003-1382 is a high-severity vulnerability in Instantservers Inc. Ismail 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-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Instantservers Inc. Ismail
Published: 2003-12-31
Last modified: 2026-06-16

Description

Buffer overflow in ISMail 1.4.3 and earlier allow remote attackers to execute arbitrary code via long domain names in (1) MAIL FROM or (2) RCPT TO fields.

Frequently asked questions

What is CVE-2003-1382?: Buffer overflow in ISMail 1.4.3 and earlier allow remote attackers to execute arbitrary code via long domain names in (1) MAIL FROM or (2) RCPT TO fields.
How severe is CVE-2003-1382?: CVE-2003-1382 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-1382 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1382?: CVE-2003-1382 affects Instantservers Inc. Ismail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1382?: 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-2003-1382 published?: CVE-2003-1382 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:instantservers_inc.:ismail:1.4.3:*:*:*:*:*:*:*

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