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CVE-2021-40342

Use of default key for encryption

7.1 High

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.

This issue affects

  • FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C;
  • UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.

List of CPEs:

  • cpe:2.3:a:hitachienergy:foxman-un:R16A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R10C:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R9C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R16A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R10C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R9C:::::::*

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.30%Down 0.6 points since Jan 6, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.1

Use of default key for encryption

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.

This issue affects

  • FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C;
  • UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.

List of CPEs:

  • cpe:2.3:a:hitachienergy:foxman-un:R16A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R10C:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R9C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R16A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R10C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R9C:::::::*
Record
CVE-2021-40342
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-798
Updated
2026-11-02
EUVDEUVD-2021-27521 7.1

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.

This issue affects

  • FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C;
  • UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.

List of CPEs:

  • cpe:2.3:a:hitachienergy:foxman-un:R16A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R10C:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R9C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R16A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R10C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R9C:::::::*
Record
EUVD-2021-27521
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-747r-gwxx-f5r5 9.8

In the DES implementation, the affected product versions use a default key for encryption....

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions. This issue affects * FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C; * UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C. List of CPEs: * cpe:2.3:a:hitachienergy:foxman-un:R16A:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R15B:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R15A:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R14B:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R14A:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R11B:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R11A:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R10C:::::::* * cpe:2.3:a:hitachienergy:foxman-un:R9C:::::::* * cpe:2.3:a:hitachienergy:unem:R16A:::::::* * cpe:2.3:a:hitachienergy:unem:R15B:::::::* * cpe:2.3:a:hitachienergy:unem:R15A:::::::* * cpe:2.3:a:hitachienergy:unem:R14B:::::::* * cpe:2.3:a:hitachienergy:unem:R14A:::::::* * cpe:2.3:a:hitachienergy:unem:R11B:::::::* * cpe:2.3:a:hitachienergy:unem:R11A:::::::* * cpe:2.3:a:hitachienergy:unem:R10C:::::::* * cpe:2.3:a:hitachienergy:unem:R9C:::::::*

Record
GHSA-747r-gwxx-f5r5
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287, CWE-798
Updated
2026-11-02
NVD 7.1

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.

This issue affects

  • FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C;
  • UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.

List of CPEs:

  • cpe:2.3:a:hitachienergy:foxman-un:R16A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R15A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R14A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11B:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R11A:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R10C:::::::*
  • cpe:2.3:a:hitachienergy:foxman-un:R9C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R16A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R15A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R14A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11B:::::::*
  • cpe:2.3:a:hitachienergy:unem:R11A:::::::*
  • cpe:2.3:a:hitachienergy:unem:R10C:::::::*
  • cpe:2.3:a:hitachienergy:unem:R9C:::::::*
Record
CVE-2021-40342
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-798, CWE-287
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-40342 is a high vulnerability (CVSS 7.1) in Hitachi Energy Foxman-un, published January 5, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. No source names a fixed version.

References

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