How severe is CVE-2020-12268?

CVE-2020-12268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12268 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12268?

CVE-2020-12268 primarily affects Artifex Jbig2dec. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12268?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-12268 published?

CVE-2020-12268 was published on 2020-04-27 and last updated on 2026-06-17.

CVE-2020-12268

CVE-2020-12268 is a critical-severity vulnerability in Artifex Jbig2dec with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Artifex Jbig2dec
Published: 2020-04-27
Last modified: 2026-06-17

Description

jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.

Frequently asked questions

What is CVE-2020-12268?: jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.
How severe is CVE-2020-12268?: CVE-2020-12268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12268 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12268?: CVE-2020-12268 primarily affects Artifex Jbig2dec. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12268?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-12268 published?: CVE-2020-12268 was published on 2020-04-27 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:artifex:jbig2dec:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

More vulnerabilities in Artifex Jbig2dec

CVE-2017-7975 — High (CVSS 7.8): Artifex jbig2dec 0.13, as used in Ghostscript, allows out-of-bounds writes because of an integer overflow in the…
CVE-2017-7976 — High (CVSS 7.1): Artifex jbig2dec 0.13 allows out-of-bounds writes and reads because of an integer overflow in the jbig2_image_compose…
CVE-2017-7885 — High (CVSS 7.1): Artifex jbig2dec 0.13 has a heap-based buffer over-read leading to denial of service (application crash) or disclosure…
CVE-2023-46361 — Medium (CVSS 6.5): Artifex Software jbig2dec v0.20 was discovered to contain a SEGV vulnerability via jbig2_error at /jbig2dec/jbig2.c.
CVE-2017-9216 — Medium (CVSS 6.5): libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the…
CVE-2016-9601 — Medium (CVSS 5.3): ghostscript before version 9.21 is vulnerable to a heap based buffer overflow that was found in the ghostscript…

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