CVE-2026-48715 (GCVE-0-2026-48715)
Vulnerability from cvelistv5 – Published: 2026-06-19 19:18 – Updated: 2026-06-22 13:57
VLAI
EPSS
VEX
Title
radvdump's Route Information Option Parser has a Stack Buffer Overflow
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 13:57 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/radvd-project/radvd/security/a… | x_refsource_CONFIRM |
| https://github.com/radvd-project/radvd/commit/068… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| radvd-project | radvdump |
Affected:
< 2.21
|
guessed |
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