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Vulnerability record · CVE-1999-1553 · published 1 May 1999

CVE-1999-1553: Xcmail vulnerability

Xcmail · Xcmail

Buffer overflow in XCmail 0.99.6 with autoquote enabled allows remote attackers to execute arbitrary commands via a long subject line.

10.0 CVSS 2.0 High EPSS 6.0% · top 6.9%
10.0CVSS 2.0 base score
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Buffer overflow in XCmail 0.99.6 with autoquote enabled allows remote attackers to execute arbitrary commands via a long subject line.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/archive/1/12730 Exploit
http://www.securityfocus.com/bid/311
https://exchange.xforce.ibmcloud.com/vulnerabilities/1859
http://www.securityfocus.com/archive/1/12730 Exploit
http://www.securityfocus.com/bid/311
https://exchange.xforce.ibmcloud.com/vulnerabilities/1859

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Source: NIST National Vulnerability Database (record CVE-1999-1553), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.