Is CVE-2024-39921 actively exploited?

No active exploitation of CVE-2024-39921 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-39921 be exploited remotely?

Yes. CVE-2024-39921 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-39921?

CVE-2024-39921 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2024-39921

HIGH

CVE-2024-39921

CWE-203Published: September 4, 2024· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Observable timing discrepancy issue exists in IPCOM EX2 Series V01L02NF0001 to V01L06NF0401, V01L20NF0001 to V01L20NF0401, V02L20NF0001 to V02L21NF0301, and IPCOM VE2 Series V01L04NF0001 to V01L06NF0112. If this vulnerability is exploited, some of the encrypted communication may be decrypted by an attacker who can obtain the contents of the communication.

NVD Source

Technical Analysis

CVE-2024-39921 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

fujitsu38 product(s)

ipcom ve2 ls 100 firmwareipcom ve2 ls 100ipcom ve2 ls 200 firmwareipcom ve2 ls 200ipcom ve2 ls 220 firmwareipcom ve2 ls 220ipcom ve2 ls plus 100 firmwareipcom ve2 ls plus 100ipcom ve2 ls plus 200 firmwareipcom ve2 ls plus 200ipcom ve2 ls plus 220 firmwareipcom ve2 ls plus 220+26

Source: NVD CPE · 38 total CPE entries