VDB
CVE-2021-3657
CVE-2021-3657
PUBLISHED
CVSS 9.800000190734863 CRITICAL
A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.
EPSS 6.12% · 90.9th percentile
Risk Scores
CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
6.12%
90.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| redhat | enterprise_linux | 7.0 |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 35 |
| n/a | isync | isync 1.4.4 |
| isync_project | isync | 0 |
Timeline
- Feb 18, 2022 CVE Published
- Feb 19, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- Jun 3, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Jul 26, 2022 EPSS Score
- Nov 7, 2022 EPSS Score
- Dec 29, 2022 EPSS Score
- Feb 19, 2023 EPSS Score
- Apr 12, 2023 EPSS Score
- Jun 3, 2023 EPSS Score
- Jul 25, 2023 EPSS Score