What is CVE-2026-48715?

CVE-2026-48715 is a high-severity vulnerability in Radvd.litech Radvd, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-06-19.

How severe is CVE-2026-48715?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Radvd.litech Radvd

CVE-2026-48715

radvd is a router advertisement daemon for IPv6. Prior to version 2.21, the `radvdump` utility shipped with radvd contains a stack buffer overflow in the Route Information option parser. When processing a crafted ICMPv6 Router Advertisemen…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (10.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Radvd.litech Radvd
Radvd-project Radvdump — versions < 2.21

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-48715?: CVE-2026-48715 is a high-severity vulnerability in Radvd.litech Radvd, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-06-19.
How severe is CVE-2026-48715?: High severity. CVSS v3 base score is 8.8 out of 10.