How severe is CVE-2020-7668?

CVE-2020-7668 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-7668 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7668?

CVE-2020-7668 affects Compression And Archive Extensions Tz Project. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7668?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-7668 published?

CVE-2020-7668 was published on 2020-06-23 and last updated on 2026-06-17.

CVE-2020-7668

CVE-2020-7668 is a high-severity vulnerability in Compression And Archive Extensions Tz Project with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Compression And Archive Extensions Tz Project
Published: 2020-06-23
Last modified: 2026-06-17

Description

In all versions of the package github.com/unknwon/cae/tz, the ExtractTo function doesn't securely escape file paths in zip archives which include leading or non-leading "..". This allows an attacker to add or replace files system-wide.

Frequently asked questions

What is CVE-2020-7668?: In all versions of the package github.com/unknwon/cae/tz, the ExtractTo function doesn't securely escape file paths in zip archives which include leading or non-leading "..". This allows an attacker to add or replace files system-wide.
How severe is CVE-2020-7668?: CVE-2020-7668 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-7668 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7668?: CVE-2020-7668 affects Compression And Archive Extensions Tz Project. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7668?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7668 published?: CVE-2020-7668 was published on 2020-06-23 and last updated on 2026-06-17.

References

https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMUNKNWONCAETZ-570384

Affected products (1)

cpe:2.3:a:compression_and_archive_extensions_tz_project:compression_and_archive_extensions_tz_project:*:*:*:*:*:*:*:*

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