CVE-2024-40764
CVE-2024-40764 is a high-severity vulnerability in Sonicwall Sonicos 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-38612
- Weakness: CWE-787
- Affected product: Sonicwall Sonicos
- Published:
- Last modified:
Description
Heap-based buffer overflow vulnerability in the SonicOS IPSec VPN allows an unauthenticated remote attacker to cause Denial of Service (DoS).
Frequently asked questions
- What is CVE-2024-40764?
- Heap-based buffer overflow vulnerability in the SonicOS IPSec VPN allows an unauthenticated remote attacker to cause Denial of Service (DoS).
- How severe is CVE-2024-40764?
- CVE-2024-40764 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 none, and availability high.
- Is CVE-2024-40764 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-40764?
- CVE-2024-40764 affects Sonicwall Sonicos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-40764?
- 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.
- Does CVE-2024-40764 have an EU (EUVD) identifier?
- Yes. CVE-2024-40764 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38612.
- When was CVE-2024-40764 published?
- CVE-2024-40764 was published on 2024-07-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
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