CVE-2026-48715: radvd-project radvdump Stack-based Buffer Overflow
Vulnerability summary
CVE-2026-48715 is a high (CVSS 8.8) Stack-based Buffer Overflow vulnerability in radvd-project radvdump. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.2% of scored vulnerabilities.
Timeline
- 19-06-2026PublishedVulnerability first disclosed.
- 22-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.7HighCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- NVDNIST7.7HighCVSS: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
- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
+0.13 pp
From 0.20% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse13 products
- radvd&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 2.17-150000.5.8.1
- radvd&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 2.17-150000.5.8.1
- radvd&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 2.17-150000.5.8.1
- radvd&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 2.17-150000.5.8.1
- radvd&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7< 2.17-150000.5.8.1
Opensuse2 products
- radvd&distro=openSUSE Leap 16.0< 2.21-160000.1.1
- radvd&distro=openSUSE Tumbleweed< 2.21-1.1
Alpine1 product
- radvd< 2.21-r0
Debian1 product
- radvdAll versions (No fix recorded)
Radvd-project1 product
- radvdump< 2.21
Radvd.litech1 product
- radvd< 2.21
Ubuntu1 product
- radvdAll versions (No fix recorded)
7 vendors · 20 products
References
11 links- github.com/radvd-project/radvd/security/advisories/GHSA-52px-gh9p-m379X Refsource CONFIRMREPORTVendor Advisory
