VULNERABILITY INTELLIGENCE

CVE-2007-1558

CVSS score2.6 LOW
EPSS probability2.42%
CISA KEVNot currently listed
Published2007-04-16
Last modified2026-06-16
CVSS vectorAV:N/AC:H/Au:N/C:P/I:N/A:N

Description

The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.

Primary references