Is CVE-2026-48715 actively exploited?

No active exploitation of CVE-2026-48715 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48715 be exploited remotely?

Partially. CVE-2026-48715 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-48715?

CVE-2026-48715 has a CVSS score of 7.7 (HIGH).

HOME VULNERABILITIESCVE-2026-48715

HIGH

CVE-2026-48715

CWE-121Published: June 19, 2026· Updated: Jun 23, 2026

7.7

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-48715 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X