How severe is CVE-2020-27336?

CVE-2020-27336 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-27336 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27336?

CVE-2020-27336 affects Treck Ipv6. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27336?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-27336 published?

CVE-2020-27336 was published on 2020-12-22 and last updated on 2026-06-17.

CVE-2020-27336

CVE-2020-27336 is a low-severity vulnerability in Treck Ipv6 with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Treck Ipv6
Published: 2020-12-22
Last modified: 2026-06-17

Description

An issue was discovered in Treck IPv6 before 6.0.1.68. Improper input validation in the IPv6 component when handling a packet sent by an unauthenticated remote attacker could result in an out-of-bounds read of up to three bytes via network access.

Frequently asked questions

What is CVE-2020-27336?: An issue was discovered in Treck IPv6 before 6.0.1.68. Improper input validation in the IPv6 component when handling a packet sent by an unauthenticated remote attacker could result in an out-of-bounds read of up to three bytes via network access.
How severe is CVE-2020-27336?: CVE-2020-27336 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-27336 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27336?: CVE-2020-27336 affects Treck Ipv6. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27336?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27336 published?: CVE-2020-27336 was published on 2020-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:treck:ipv6:*:*:*:*:*:*:*:*

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