CVE-2025-23019: ietf ipv6
CVSS: 6.5v3.1MediumModified
Published 14-01-2025Last modified 03-11-2025
Vulnerability summary
CVE-2025-23019 is a medium (CVSS 6.5) vulnerability in ietf ipv6. EPSS estimates a 1.01% chance of exploitation in the next 30 days, higher than 62.5% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
1.01%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-01-2025PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interface.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:LSources2 sources · 5.4–6.5
- CVE.orgCNA5.4MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
1.01%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
0.00 pp
From 1.01% on 18-09-2026
18-09-202618-10-2026
EPSS score1.01%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ietf1 product
- ipv66 | na
1 vendor · 1 product
References
4 links- datatracker.ietf.org/doc/html/rfc4213Technical Description
- papers.mathyvanhoef.com/usenix2025-tunnels.pdfTechnical Description
- www.top10vpn.com/research/tunneling-protocol-vulnerability/Technical Description