How severe is CVE-2020-21678?

CVE-2020-21678 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-21678 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21678?

CVE-2020-21678 affects Fig2dev Project Fig2dev. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21678?

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

When was CVE-2020-21678 published?

CVE-2020-21678 was published on 2021-08-10 and last updated on 2026-06-17.

CVE-2020-21678

CVE-2020-21678 is a medium-severity vulnerability in Fig2dev Project Fig2dev with a CVSS 3.x base score of 5.5. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Fig2dev Project Fig2dev
Published: 2021-08-10
Last modified: 2026-06-17

Description

A global buffer overflow in the genmp_writefontmacro_latex component in genmp.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into mp format.

Frequently asked questions

What is CVE-2020-21678?: A global buffer overflow in the genmp_writefontmacro_latex component in genmp.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into mp format.
How severe is CVE-2020-21678?: CVE-2020-21678 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-21678 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21678?: CVE-2020-21678 affects Fig2dev Project Fig2dev. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21678?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-21678 published?: CVE-2020-21678 was published on 2021-08-10 and last updated on 2026-06-17.

References

https://sourceforge.net/p/mcj/tickets/71/

Affected products (1)

cpe:2.3:a:fig2dev_project:fig2dev:3.2.7b:*:*:*:*:*:*:*

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