What is CVE-2023-4809?

CVE-2023-4809 is a high-severity vulnerability in Freebsd, classified under CWE-167. CVSS score: 7.5/10. Published 2023-09-06.

How severe is CVE-2023-4809?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Freebsd

CVE-2023-4809

In pf packet processing with a 'scrub fragment reassemble' rule, a packet containing multiple IPv6 fragment headers would be reassembled, and then immediately processed. That is, a packet with multiple fragment extension headers would not…

EPSS: 0.007 (48.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Freebsd — versions 13.2, 13.2-RELEASE, 12.4

Weakness classification (CWE)

CWE-167

References

secteam@freebsd.org (vendor-advisory, Vendor Advisory)
secteam@freebsd.org (Mailing List, Third Party Advisory)
secteam@freebsd.org (Mailing List, Third Party Advisory)
secteam@freebsd.org (Mailing List, Third Party Advisory)
secteam@freebsd.org

Frequently asked questions

What is CVE-2023-4809?: CVE-2023-4809 is a high-severity vulnerability in Freebsd, classified under CWE-167. CVSS score: 7.5/10. Published 2023-09-06.
How severe is CVE-2023-4809?: High severity. CVSS v3 base score is 7.5 out of 10.