How severe is CVE-2023-40580?

CVE-2023-40580 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-40580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40580?

CVE-2023-40580 affects Stellar Freighter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40580?

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-2023-40580 published?

CVE-2023-40580 was published on 2023-08-25 and last updated on 2026-06-17.

CVE-2023-40580

CVE-2023-40580 is a high-severity vulnerability in Stellar Freighter with a CVSS 3.x base score of 8.1. 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-200.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Stellar Freighter
Published: 2023-08-25
Last modified: 2026-06-17

Description

Freighter is a Stellar chrome extension. It may be possible for a malicious website to access the recovery mnemonic phrase when the Freighter wallet is unlocked. This vulnerability impacts access control to the mnemonic recovery phrase. This issue was patched in version 5.3.1.

Frequently asked questions

What is CVE-2023-40580?: Freighter is a Stellar chrome extension. It may be possible for a malicious website to access the recovery mnemonic phrase when the Freighter wallet is unlocked. This vulnerability impacts access control to the mnemonic recovery phrase. This issue was patched in version 5.3.1.
How severe is CVE-2023-40580?: CVE-2023-40580 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-40580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40580?: CVE-2023-40580 affects Stellar Freighter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40580?: 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-2023-40580 published?: CVE-2023-40580 was published on 2023-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stellar:freighter:*:*:*:*:*:*:*:*

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