CVE-2023-36671

mediumpriority · track · 25OT risk · elevatedEPSS 0.003 · 17 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (17th) EPSS

CVSS 6.3 · medium

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that all IP traffic to the VPN server's IP address is sent in plaintext outside the VPN tunnel even if this traffic is not generated by the VPN client. This allows an adversary to trick the victim into sending plaintext traffic to the VPN server's IP address and thereby deanonymize the victim. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "ServerIP attack for only traffic to the real IP address of the VPN server" rather than to only Clario.

cvss

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

6.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.3mediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 1 · impact 5.2

v3.16.3mediumAV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.15.8mediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-319USprimaryCWE-319US

affected products (8)

Products and version ranges known to be affected.

SonicWall SMA 100all versionscert_bundDEcpe:/a:sonicwall:secure_mobile_access:100
SonicWall SMA 1000all versionscert_bundDEcpe:/a:sonicwall:secure_mobile_access:1000
SonicWall SMA Connect Tunnelall versionscert_bundDEcpe:/a:sonicwall:secure_mobile_access:connect_tunnel
SonicWall SMA Mobile Connectall versionscert_bundDEcpe:/a:sonicwall:secure_mobile_access:mobile_connect
SonicWall SMA NetExtenderall versionscert_bundDEcpe:/a:sonicwall:secure_mobile_access:netextender
n/a n/a≤ n/aenisa_euvdEU
Clario Tech Limited Clario≤ 5.9.1.1662fstec_bduRU
clario vpn≤ 5.9.1.1662nvdUScpe:2.3:a:clario:vpn:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2781SonicWall SMA: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2023-10-30csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in SonicWall SMA ausnutzen, um Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-08-09modified 2026-06-17

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+1178 more

references (12)

External citations — patches, advisories, analysis.

scry

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