CVE-2020-27338
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6...
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.
- Record
CVE-2020-27338- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AC:H/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2020-19851
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.
- Record
EUVD-2020-19851- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AC:H/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2v93-8mhc-6mf8 No score
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6...
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.
- Record
GHSA-2v93-8mhc-6mf8- Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.
- Record
CVE-2020-27338- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H - CVSS 3.1
- 7.1 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H - CVSS 2.0
- 4.8 Medium
AV:A/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-20, CWE-125
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-27338 is a medium vulnerability (CVSS 5.9) in Treck Ipv6, published December 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 56th percentile. No source names a fixed version.