Vulnerability Details 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 Advertisement, `print_ff()` copies up to 2032 bytes from attacker-controlled packet data into a 16-byte `struct in6_addr` on the stack, overflowing by up to 2016 bytes. Note that the main `radvd` daemon is not affected by the vulnerability. Version 2.21 patches the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 10.4%
CVSS Severity
CVSS v3 Score 8.8
References
Products affected by CVE-2026-48715
-
cpe:2.3:a:radvd.litech:radvd:0.4.1
-
cpe:2.3:a:radvd.litech:radvd:0.4.2
-
cpe:2.3:a:radvd.litech:radvd:0.5.0
-
cpe:2.3:a:radvd.litech:radvd:0.6.1
-
cpe:2.3:a:radvd.litech:radvd:0.6.2
-
cpe:2.3:a:radvd.litech:radvd:0.7.0
-
cpe:2.3:a:radvd.litech:radvd:0.7.1
-
cpe:2.3:a:radvd.litech:radvd:0.7.2
-
cpe:2.3:a:radvd.litech:radvd:0.7.3
-
cpe:2.3:a:radvd.litech:radvd:0.8
-
cpe:2.3:a:radvd.litech:radvd:0.9
-
cpe:2.3:a:radvd.litech:radvd:0.9.1
-
cpe:2.3:a:radvd.litech:radvd:1.0
-
cpe:2.3:a:radvd.litech:radvd:1.1
-
cpe:2.3:a:radvd.litech:radvd:1.10.0
-
cpe:2.3:a:radvd.litech:radvd:1.11
-
cpe:2.3:a:radvd.litech:radvd:1.12
-
cpe:2.3:a:radvd.litech:radvd:1.13
-
cpe:2.3:a:radvd.litech:radvd:1.14
-
cpe:2.3:a:radvd.litech:radvd:1.15
-
cpe:2.3:a:radvd.litech:radvd:1.2
-
cpe:2.3:a:radvd.litech:radvd:1.3
-
cpe:2.3:a:radvd.litech:radvd:1.4
-
cpe:2.3:a:radvd.litech:radvd:1.6
-
cpe:2.3:a:radvd.litech:radvd:1.7
-
cpe:2.3:a:radvd.litech:radvd:1.8
-
cpe:2.3:a:radvd.litech:radvd:1.8.2
-
cpe:2.3:a:radvd.litech:radvd:1.8.3
-
cpe:2.3:a:radvd.litech:radvd:1.8.4
-
cpe:2.3:a:radvd.litech:radvd:1.8.5
-
cpe:2.3:a:radvd.litech:radvd:1.9
-
cpe:2.3:a:radvd.litech:radvd:1.9.1
-
cpe:2.3:a:radvd.litech:radvd:1.9.2
-
cpe:2.3:a:radvd.litech:radvd:1.9.3
-
cpe:2.3:a:radvd.litech:radvd:1.9.4
-
cpe:2.3:a:radvd.litech:radvd:1.9.5
-
cpe:2.3:a:radvd.litech:radvd:1.9.6
-
cpe:2.3:a:radvd.litech:radvd:1.9.7
-
cpe:2.3:a:radvd.litech:radvd:1.9.8
-
cpe:2.3:a:radvd.litech:radvd:1.9.9
-
cpe:2.3:a:radvd.litech:radvd:2.0
-
cpe:2.3:a:radvd.litech:radvd:2.1
-
cpe:2.3:a:radvd.litech:radvd:2.10
-
cpe:2.3:a:radvd.litech:radvd:2.11
-
cpe:2.3:a:radvd.litech:radvd:2.12
-
cpe:2.3:a:radvd.litech:radvd:2.13
-
cpe:2.3:a:radvd.litech:radvd:2.14
-
cpe:2.3:a:radvd.litech:radvd:2.15
-
cpe:2.3:a:radvd.litech:radvd:2.16
-
cpe:2.3:a:radvd.litech:radvd:2.17
-
cpe:2.3:a:radvd.litech:radvd:2.18
-
cpe:2.3:a:radvd.litech:radvd:2.19
-
cpe:2.3:a:radvd.litech:radvd:2.2
-
cpe:2.3:a:radvd.litech:radvd:2.20
-
cpe:2.3:a:radvd.litech:radvd:2.3
-
cpe:2.3:a:radvd.litech:radvd:2.4
-
cpe:2.3:a:radvd.litech:radvd:2.5
-
cpe:2.3:a:radvd.litech:radvd:2.6
-
cpe:2.3:a:radvd.litech:radvd:2.7
-
cpe:2.3:a:radvd.litech:radvd:2.8
-
cpe:2.3:a:radvd.litech:radvd:2.9