CVE-2020-21830

HIGH 8.8CVE-2020-21830 · Published 17/05/2021 · updated 09/07/2026

In short

CVE-2020-21830 is a HIGH (CVSS 8.8) vulnerability affecting libredwg (gnu).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
libredwg gnu	`= 0.10`	No fix yet

A heap based buffer overflow vulneraibility exists in GNU LibreDWG 0.10 via bit_calc_CRC ../../src/bits.c:2213.

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