CVE-2026-48715
8.8 · HIGHOverview
CVE-2026-48715 is a high-severity vulnerability affecting radvd.litech radvd. It was published on June 19, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from radvd.litech. Update radvd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| radvd.litech | radvd | >= 0, < 2.21 | Affected |
Frequently Asked Questions
What is CVE-2026-48715?
CVE-2026-48715 is a high-severity vulnerability affecting radvd.litech radvd. It was published on June 19, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-48715?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-48715?
Check the references section for vendor advisories and patches from radvd.litech. Update radvd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-48715?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-48715 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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