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Vulnerability record · CVE-2007-1673 · published 9 May 2007

CVE-2007-1673: Amavis vulnerability

Amavis · Amavis

unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.

7.8 CVSS 2.0 High EPSS 3.2% · top 12.4% CWE-399 · CWE-399
7.8CVSS 2.0 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
13Affected product versions listed by NVD
14References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.

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

Affected products

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

References

LinkTags
http://osvdb.org/36208
http://secunia.com/advisories/25315 Vendor Advisory
http://securityreason.com/securityalert/2680
http://www.amavis.org/security/asa-2007-2.txt
http://www.securityfocus.com/archive/1/467646/100/0/threaded
http://www.securityfocus.com/bid/23823 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/34080
http://osvdb.org/36208
http://secunia.com/advisories/25315 Vendor Advisory
http://securityreason.com/securityalert/2680
http://www.amavis.org/security/asa-2007-2.txt
http://www.securityfocus.com/archive/1/467646/100/0/threaded
http://www.securityfocus.com/bid/23823 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/34080

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2007-1673), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.