How severe is CVE-2020-24454?

CVE-2020-24454 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 high, integrity none, and availability none.

Is CVE-2020-24454 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24454?

CVE-2020-24454 primarily affects Intel Quartus Prime. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-24454?

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-2020-24454 published?

CVE-2020-24454 was published on 2020-11-12 and last updated on 2026-06-17.

CVE-2020-24454

CVE-2020-24454 is a high-severity vulnerability in Intel Quartus Prime 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-611.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Intel Quartus Prime
Published: 2020-11-12
Last modified: 2026-06-17

Description

Improper Restriction of XML External Entity Reference in subsystem forIntel(R) Quartus(R) Prime Pro Edition before version 20.3 and Intel(R) Quartus(R) Prime Standard Edition before version 20.2 may allow unauthenticated user to potentially enable information disclosure via network access.

Frequently asked questions

What is CVE-2020-24454?: Improper Restriction of XML External Entity Reference in subsystem forIntel(R) Quartus(R) Prime Pro Edition before version 20.3 and Intel(R) Quartus(R) Prime Standard Edition before version 20.2 may allow unauthenticated user to potentially enable information disclosure via network access.
How severe is CVE-2020-24454?: CVE-2020-24454 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 high, integrity none, and availability none.
Is CVE-2020-24454 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24454?: CVE-2020-24454 primarily affects Intel Quartus Prime. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-24454?: 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-2020-24454 published?: CVE-2020-24454 was published on 2020-11-12 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00446

Affected products (2)

cpe:2.3:a:intel:quartus_prime:*:*:*:*:standard:*:*:*
cpe:2.3:a:intel:quartus_prime:*:*:*:*:pro:*:*:*

More vulnerabilities in Intel Quartus Prime

CVE-2022-21220 — High (CVSS 7.8): Improper restriction of XML external entity for Intel(R) Quartus(R) Prime Pro Edition before version 21.3 may allow an…
CVE-2022-21204 — High (CVSS 7.8): Improper permissions for Intel(R) Quartus(R) Prime Pro Edition before version 21.3 may allow an authenticated user to…
CVE-2022-21203 — High (CVSS 7.8): Improper permissions in the SafeNet Sentinel driver for Intel(R) Quartus(R) Prime Standard Edition before version 21.1…
CVE-2022-21174 — High (CVSS 7.8): Improper access control in a third-party component of Intel(R) Quartus(R) Prime Pro Edition before version 21.3 may…
CVE-2021-44454 — High (CVSS 7.8): Improper input validation in a third-party component for Intel(R) Quartus(R) Prime Pro Edition before version 21.3 may…
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