How severe is CVE-2024-21530?

CVE-2024-21530 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-21530 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21530?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21530 have an EU (EUVD) identifier?

Yes. CVE-2024-21530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3124.

When was CVE-2024-21530 published?

CVE-2024-21530 was published on 2024-10-02 and last updated on 2026-06-17.

CVE-2024-21530

CVE-2024-21530 is a medium-severity vulnerability with a CVSS 3.x base score of 4.5. 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-323.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3124
Weakness: CWE-323
Published: 2024-10-02
Last modified: 2026-06-17

Description

Versions of the package cocoon before 0.4.0 are vulnerable to Reusing a Nonce, Key Pair in Encryption when the encrypt, wrap, and dump functions are sequentially called. An attacker can generate the same ciphertext by creating a new encrypted message with the same cocoon object. **Note:** The issue does NOT affect objects created with Cocoon::new which utilizes ThreadRng.

Frequently asked questions

What is CVE-2024-21530?: Versions of the package cocoon before 0.4.0 are vulnerable to Reusing a Nonce, Key Pair in Encryption when the encrypt, wrap, and dump functions are sequentially called. An attacker can generate the same ciphertext by creating a new encrypted message with the same cocoon object. **Note:** The issue does NOT affect objects created with Cocoon::new which utilizes ThreadRng.
How severe is CVE-2024-21530?: CVE-2024-21530 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-21530 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21530?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21530 have an EU (EUVD) identifier?: Yes. CVE-2024-21530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3124.
When was CVE-2024-21530 published?: CVE-2024-21530 was published on 2024-10-02 and last updated on 2026-06-17.

References

Other CWE-323 vulnerabilities

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