Vulnerability in Bird Fastmail

CVE-2024-7209

A vulnerability exists in the use of shared SPF records in multi-tenant hosting providers, allowing attackers to use network authorization to be abused to spoof the email identify of the sender.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-7209: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-7209?
CVE-2024-7209 is a medium-severity vulnerability in Bird Fastmail, classified under CWE-290 AUTHENTICATION BYPASS BY SPOOFING. CVSS score: 6.5/10. Published 2024-07-30.
How severe is CVE-2024-7209?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2024-7209 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.