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HIGH

CVE-2021-42006

CVSS v3

8.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted GFF file.

Technical details

Published
2021-10-04

Frequently asked questions

What is CVE-2021-42006?

An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted GFF file.

Is CVE-2021-42006 actively exploited?

Active exploitation of CVE-2021-42006 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-42006?

CVE-2021-42006 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-42006 affecting your environment?

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