How severe is CVE-2016-7563?

CVE-2016-7563 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-7563 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-7563?

CVE-2016-7563 affects Artifex Mujs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-7563?

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-2016-7563 published?

CVE-2016-7563 was published on 2017-01-18 and last updated on 2026-06-17.

CVE-2016-7563

CVE-2016-7563 is a high-severity vulnerability in Artifex Mujs with a CVSS 3.x base score of 7.5. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Artifex Mujs
Published: 2017-01-18
Last modified: 2026-06-17

Description

The chartorune function in Artifex Software MuJS allows attackers to cause a denial of service (out-of-bounds read) via a * (asterisk) at the end of the input.

Frequently asked questions

What is CVE-2016-7563?: The chartorune function in Artifex Software MuJS allows attackers to cause a denial of service (out-of-bounds read) via a * (asterisk) at the end of the input.
How severe is CVE-2016-7563?: CVE-2016-7563 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-7563 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-7563?: CVE-2016-7563 affects Artifex Mujs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-7563?: 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-2016-7563 published?: CVE-2016-7563 was published on 2017-01-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:artifex:mujs:-:*:*:*:*:*:*:*

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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