How severe is CVE-2022-44789?

CVE-2022-44789 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-44789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-44789?

CVE-2022-44789 primarily affects Artifex Mujs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-44789?

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

When was CVE-2022-44789 published?

CVE-2022-44789 was published on 2022-11-23 and last updated on 2026-06-17.

CVE-2022-44789

CVE-2022-44789 is a high-severity vulnerability in Artifex Mujs with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Artifex Mujs
Published: 2022-11-23
Last modified: 2026-06-17

Description

A logical issue in O_getOwnPropertyDescriptor() in Artifex MuJS 1.0.0 through 1.3.x before 1.3.2 allows an attacker to achieve Remote Code Execution through memory corruption, via the loading of a crafted JavaScript file.

Frequently asked questions

What is CVE-2022-44789?: A logical issue in O_getOwnPropertyDescriptor() in Artifex MuJS 1.0.0 through 1.3.x before 1.3.2 allows an attacker to achieve Remote Code Execution through memory corruption, via the loading of a crafted JavaScript file.
How severe is CVE-2022-44789?: CVE-2022-44789 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-44789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-44789?: CVE-2022-44789 primarily affects Artifex Mujs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-44789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-44789 published?: CVE-2022-44789 was published on 2022-11-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

More vulnerabilities in Artifex Mujs

CVE-2021-33796 — Critical (CVSS 10.0): In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.
CVE-2021-33797 — Critical (CVSS 9.8): Buffer-overflow in jsdtoa.c in Artifex MuJS in versions 1.0.1 to 1.1.1. An integer overflow happens when js_strtod()…
CVE-2021-45005 — Critical (CVSS 9.8): Artifex MuJS v1.1.3 was discovered to contain a heap buffer overflow which is caused by conflicting JumpList of nested…
CVE-2019-12798 — Critical (CVSS 9.8): An issue was discovered in Artifex MuJS 1.0.5. regcompx in regexp.c does not restrict regular expression program size,…
CVE-2019-11411 — Critical (CVSS 9.8): An issue was discovered in Artifex MuJS 1.0.5. The Number#toFixed() and numtostr implementations in jsnumber.c have a…
CVE-2016-10133 — Critical (CVSS 9.8): Heap-based buffer overflow in the js_stackoverflow function in jsrun.c in Artifex Software, Inc. MuJS allows attackers…

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