How severe is CVE-2020-26683?

CVE-2020-26683 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 high, integrity none, and availability none.

Is CVE-2020-26683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26683?

CVE-2020-26683 affects Artifex Mupdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26683?

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

When was CVE-2020-26683 published?

CVE-2020-26683 was published on 2023-08-22 and last updated on 2026-06-17.

CVE-2020-26683

CVE-2020-26683 is a medium-severity vulnerability in Artifex Mupdf 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Artifex Mupdf
Published: 2023-08-22
Last modified: 2026-06-17

Description

A memory leak issue discovered in /pdf/pdf-font-add.c in Artifex Software MuPDF 1.17.0 allows attackers to obtain sensitive information.

Frequently asked questions

What is CVE-2020-26683?: A memory leak issue discovered in /pdf/pdf-font-add.c in Artifex Software MuPDF 1.17.0 allows attackers to obtain sensitive information.
How severe is CVE-2020-26683?: CVE-2020-26683 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 high, integrity none, and availability none.
Is CVE-2020-26683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26683?: CVE-2020-26683 affects Artifex Mupdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26683?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-26683 published?: CVE-2020-26683 was published on 2023-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:artifex:mupdf:1.17.0:-:*:*:*:*:*:*

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