What is CVE-2024-40765?

CVE-2024-40765 is a critical-severity vulnerability in Sonicwall Sonicos, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2025-01-09.

How severe is CVE-2024-40765?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-40765 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Integer overflow in Sonicwall Sonicos

CVE-2024-40765

An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a specially crafted IKEv2 payload.

Vulnerability class: Integer Overflow

EPSS: 0.008 (52.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Sonicwall Sonicos — versions 6.5.4.4-44v-21-2395 and older versions, 7.0.1-5151 and older versions, 7.1.1-7051 and older versions

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

PSIRT@sonicwall.com (vendor-advisory)

Frequently asked questions

What is CVE-2024-40765?: CVE-2024-40765 is a critical-severity vulnerability in Sonicwall Sonicos, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2025-01-09.
How severe is CVE-2024-40765?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-40765 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.