How severe is CVE-2024-45237?

CVE-2024-45237 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-2024-45237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-45237?

CVE-2024-45237 affects Nicmx Fort-validator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-45237?

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.

Does CVE-2024-45237 have an EU (EUVD) identifier?

Yes. CVE-2024-45237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-41378.

When was CVE-2024-45237 published?

CVE-2024-45237 was published on 2024-08-24 and last updated on 2026-06-17.

CVE-2024-45237

CVE-2024-45237 is a critical-severity vulnerability in Nicmx Fort-validator 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-41378
Weakness: CWE-120
Affected product: Nicmx Fort-validator
Published: 2024-08-24
Last modified: 2026-06-17

Description

An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.

Frequently asked questions

What is CVE-2024-45237?: An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.
How severe is CVE-2024-45237?: CVE-2024-45237 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-2024-45237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-45237?: CVE-2024-45237 affects Nicmx Fort-validator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-45237?: 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.
Does CVE-2024-45237 have an EU (EUVD) identifier?: Yes. CVE-2024-45237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-41378.
When was CVE-2024-45237 published?: CVE-2024-45237 was published on 2024-08-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nicmx:fort-validator:*:*:*:*:*:*:*:*

More vulnerabilities in Nicmx Fort-validator

CVE-2024-45239 — High (CVSS 7.5): An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor…
CVE-2024-45236 — High (CVSS 7.5): An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor…
CVE-2024-45234 — High (CVSS 7.5): An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor…
CVE-2024-56170 — Medium (CVSS 5.3): A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI manifests are listings of relevant…

All CVEs affecting Nicmx Fort-validator →

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