What’s Vulnerable › Vulnerabilities

CVE-2020-21817

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-05-17 · updated 2026-07-09
• Weakness: CWE-476

Description

A null pointer dereference issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29. which causes a denial of service (application crash).

Affected products

• GNU LibreDWG: 0.10.2641

References

• https://github.com/LibreDWG/libredwg/issues/182#issue-547887727
• https://github.com/LibreDWG/libredwg/issues/182#issue-547887727

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