CVE-2021-20314
moderate-risk
Published 2021-08-12
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
Do I need to act?
-
0.17% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
References (10)
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1993070
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1993070
45
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
1/34 · Minimal
Exposure
12/34 · Low