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HIGH

CVE-2021-36080

CVSS v3

8.8

HIGH

EPSS Score

1.3 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).

Technical details

Published
2021-07-01

Frequently asked questions

What is CVE-2021-36080?

GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).

Is CVE-2021-36080 actively exploited?

Active exploitation of CVE-2021-36080 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-36080?

CVE-2021-36080 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-36080 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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