How severe is CVE-2019-20911?

CVE-2019-20911 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-20911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20911?

CVE-2019-20911 affects Gnu Libredwg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-20911?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-20911 published?

CVE-2019-20911 was published on 2020-07-16 and last updated on 2026-06-17.

CVE-2019-20911

CVE-2019-20911 is a medium-severity vulnerability in Gnu Libredwg with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-835
Affected product: Gnu Libredwg
Published: 2020-07-16
Last modified: 2026-06-17

Description

An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to denial of service in bit_calc_CRC in bits.c, related to a for loop.

Frequently asked questions

What is CVE-2019-20911?: An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to denial of service in bit_calc_CRC in bits.c, related to a for loop.
How severe is CVE-2019-20911?: CVE-2019-20911 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-20911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20911?: CVE-2019-20911 affects Gnu Libredwg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-20911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20911 published?: CVE-2019-20911 was published on 2020-07-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*

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CVE-2023-36274 — High (CVSS 8.8): LibreDWG v0.11 to v0.12.5 was discovered to contain a heap buffer overflow via the function bit_write_TF at bits.c.

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