Mutt before 1.14.3 allows an IMAP fcc/postpone man-in-the-middle attack via a PREAUTH response.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"extracted_events": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.10"
},
{
"last_affected": "19.10"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING",
"vendor_product": "canonical:ubuntu_linux"
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING",
"vendor_product": "debian:debian_linux"
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
},
{
"introduced": "15.2"
},
{
"last_affected": "15.2"
}
],
"source": "CPE_STRING",
"vendor_product": "opensuse:leap"
}
]
}{
"cpe": "cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*",
"source": [
"CPE_RANGE",
"REFERENCES"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.14.3"
}
]
}[
{
"source": "https://github.com/muttmua/mutt/commit/3e88866dc60b5fa6aaba6fd7c1710c12c1c3cd01",
"deprecated": false,
"signature_version": "v1",
"digest": {
"function_hash": "99262274997635620213827591474529996391",
"length": 1573.0
},
"id": "CVE-2020-14093-6b7c5d7d",
"signature_type": "Function",
"target": {
"function": "imap_open_connection",
"file": "imap/imap.c"
}
},
{
"source": "https://github.com/muttmua/mutt/commit/3e88866dc60b5fa6aaba6fd7c1710c12c1c3cd01",
"deprecated": false,
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"329073539510483226673591755286140115782",
"9354916070945391285853520657590882211",
"279020998710288366256738070141285880900",
"42441136732123735428779836290913799504"
]
},
"id": "CVE-2020-14093-e6266d78",
"signature_type": "Line",
"target": {
"file": "imap/imap.c"
}
}
]
"2026-07-08T22:14:27Z"
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14093.json"