How severe is CVE-2019-15545?

CVE-2019-15545 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 high, and availability none.

Is CVE-2019-15545 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15545?

CVE-2019-15545 affects Libp2p. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15545?

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-2019-15545 published?

CVE-2019-15545 was published on 2019-08-26 and last updated on 2026-06-17.

CVE-2019-15545

CVE-2019-15545 is a high-severity vulnerability in Libp2p 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-347.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Libp2p
Published: 2019-08-26
Last modified: 2026-06-17

Description

An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.

Frequently asked questions

What is CVE-2019-15545?: An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
How severe is CVE-2019-15545?: CVE-2019-15545 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 high, and availability none.
Is CVE-2019-15545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15545?: CVE-2019-15545 affects Libp2p. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15545?: 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-2019-15545 published?: CVE-2019-15545 was published on 2019-08-26 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2019-0004.html

Affected products (1)

cpe:2.3:a:libp2p:libp2p:*:*:*:*:*:*:*:*

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