CVE-2024-40764

highpriority · track · 30EPSS 0.007 · 53 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.70% (53rd) EPSS

CVSS 7.5 · high

Is it mine?

13 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · ncsc_nl

EPSS · scored 2026-10-27

Heap-based buffer overflow vulnerability in the SonicOS IPSec VPN allows an unauthenticated remote attacker to cause Denial of Service (DoS).

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-122USCWE-122USCWE-122US

affected products (13)

Products and version ranges known to be affected.

SonicWall SonicOS≤ 7.1.1-7051 and older versionsenisa_euvdEU
SonicWall SonicOS≤ 7.0.1-5151 and older versionsenisa_euvdEU
SonicWall SonicOS≤ 6.5.4.4-44v-21-2395 and older versionsenisa_euvdEU
SonicWall SonicOS≤ 7.0.1-5151fstec_bduRU
SonicWall SonicOS≤ 6.5.4.v-21s-RC2457fstec_bduRU
SonicWall SonicOS7.1.1 → 7.1.1-7051fstec_bduRU
sonicosall versionsncsc_nlNLcpe:2.3:a:sonicwall:sonicos:*:*:*:*:*:*:*:*
sonicosall versionsncsc_nlNLcpe:2.3:a:sonicwall:sonicos:6.5.4.4-44v-21-2395_and_older_versions:*:*:*:*:*:*:*
sonicosall versionsncsc_nlNLcpe:2.3:a:sonicwall:sonicos:7.0.1-5151_and_older_versions:*:*:*:*:*:*:*
sonicosall versionsncsc_nlNLcpe:2.3:a:sonicwall:sonicos:7.1.1-7051_and_older_versions:*:*:*:*:*:*:*
sonicwall sonicos< 6.5.4.v-21s-rc2457nvdUScpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
sonicwall sonicos< 7.0.1-5161nvdUScpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
sonicwall sonicos7.1.1-7040 → 7.1.1-7058nvdUScpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2024-0310Kwetsbaarheid verholpen in SonicOSNL2024-07-18csaf · ncsc_nlNL
Er is een kwetsbaarheid verholpen in SonicWall SonicOS IPSec.
WID-SEC-W-2024-1671SonicWall SonicOS IPSec VPN: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-07-17csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in SonicWall SonicOS ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu ncsc_nl nvd cert_bund NVD CVE.org MITRE

published 2024-07-18modified 2026-06-17

related (16,124)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-86950US	—OT critical	26.2% (98th)	KEV	2026-09-28
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1,…
CVE-2026-87491US	—OT critical	3.51% (89th)	KEV	2026-09-09
Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security…
CVE-2026-53362US	—OT critical	0.71% (53rd)	KEV	2026-07-04
In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT critical	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-11645US	—OT critical	2.44% (84th)	KEV	2026-06-09
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…

+16119 more

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan