How severe is CVE-2018-1000035?

CVE-2018-1000035 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000035 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000035?

CVE-2018-1000035 affects Unzip Project Unzip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000035?

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-2018-1000035 published?

CVE-2018-1000035 was published on 2018-02-09 and last updated on 2026-06-17.

CVE-2018-1000035

CVE-2018-1000035 is a high-severity vulnerability in Unzip Project Unzip with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 30% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 30% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Unzip Project Unzip
Published: 2018-02-09
Last modified: 2026-06-17

Description

A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password-protected archives that allows an attacker to perform a denial of service or to possibly achieve code execution.

Frequently asked questions

What is CVE-2018-1000035?: A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password-protected archives that allows an attacker to perform a denial of service or to possibly achieve code execution.
How severe is CVE-2018-1000035?: CVE-2018-1000035 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000035 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000035?: CVE-2018-1000035 affects Unzip Project Unzip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000035?: 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-2018-1000035 published?: CVE-2018-1000035 was published on 2018-02-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:unzip_project:unzip:*:*:*:*:*:*:*:*

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CVE-2014-8140 — High (CVSS 7.8): Heap-based buffer overflow in the test_compr_eb function in Info-ZIP UnZip 6.0 and earlier allows remote attackers to…
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