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HIGH

CVE-2018-16985

CVSS v3

7.5

HIGH

EPSS Score

1.5 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.

Technical details

Published
2018-09-13

Frequently asked questions

What is CVE-2018-16985?

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.

Is CVE-2018-16985 actively exploited?

Active exploitation of CVE-2018-16985 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16985?

CVE-2018-16985 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2018-16985 affecting your environment?

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