How severe is CVE-2022-30763?

CVE-2022-30763 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-2022-30763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30763?

CVE-2022-30763 affects Janet-lang Janet. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-30763?

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-2022-30763 published?

CVE-2022-30763 was published on 2022-05-16 and last updated on 2026-06-17.

CVE-2022-30763

CVE-2022-30763 is a high-severity vulnerability in Janet-lang Janet 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-129.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-129
Affected product: Janet-lang Janet
Published: 2022-05-16
Last modified: 2026-06-17

Description

Janet before 1.22.0 mishandles arrays.

Frequently asked questions

What is CVE-2022-30763?: Janet before 1.22.0 mishandles arrays.
How severe is CVE-2022-30763?: CVE-2022-30763 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-2022-30763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30763?: CVE-2022-30763 affects Janet-lang Janet. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-30763?: 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-2022-30763 published?: CVE-2022-30763 was published on 2022-05-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*

More vulnerabilities in Janet-lang Janet

CVE-2026-2869 — Low (CVSS 3.3): A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function…
CVE-2026-2242 — Low (CVSS 3.3): A vulnerability was determined in janet-lang janet up to 1.40.1. This impacts the function janetc_if of the file…
CVE-2026-2241 — Low (CVSS 3.3): A vulnerability was found in janet-lang janet up to 1.40.1. This affects the function os_strftime of the file…
CVE-2026-2240 — Low (CVSS 3.3): A vulnerability has been found in janet-lang janet up to 1.40.1. The impacted element is the function…

All CVEs affecting Janet-lang Janet →

Other CWE-129 (Improper Validation of Array Index) vulnerabilities

CVE-2020-27485 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2020-27483 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2026-21413 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545…
CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-3357 — Critical (CVSS 9.8): IBM Tivoli Monitoring 6.3.0.7 through 6.3.0.7 Service Pack 19 could allow a remote attacker to execute arbitrary code…
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.

Browse all CWE-129 (Improper Validation of Array Index) vulnerabilities →