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CVE-2021-40341

Weak DES encryption

7.1 High

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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

0.09%Down 0.8 points since Jan 6, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.1

Weak DES encryption

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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-2021-40341
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-326
Updated
2026-11-02
EUVDEUVD-2021-27520 7.1

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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-2021-27520
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-xg5w-j24m-8379 5.5

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt...

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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-xg5w-j24m-8379
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-326
Updated
2026-11-02
NVD 7.1

DES cipher, which has inadequate encryption strength, is used Hitachi Energy FOXMAN-UN to encrypt user credentials used to access the Network Elements. Successful exploitation allows sensitive information to be decrypted easily. 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-2021-40341
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
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-326
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-2021-40341 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 0.09%, the 0th percentile. No source names a fixed version.

References

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