CVE-2025-35978: Fujitsu Client Computing UpdateNavi · Improper restriction of communication channel to intended endpoints
Affects Fujitsu Client Computing UpdateNaviSource CVE Database V5
Not known to be exploited · CVSS 7.1 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Immediate application of any available patches or updates from Fujitsu addressing this vulnerability is paramount.
- Restrict local access to systems running vulnerable versions of UpdateNavi by enforcing strict access controls, including limiting administrative privileges and implementing robust endpoint security solutions that can detect and prevent unauthorized local activities.
- Employ application whitelisting and behavior monitoring to detect anomalous registry modifications or unexpected code execution related to UpdateNavi processes.
- Conduct regular audits of registry settings and system update logs to identify unauthorized changes potentially linked to exploitation attempts.
- Consider isolating or segmenting Fujitsu client devices within the network to limit potential lateral movement if compromise occurs.
- Educate users about the risks of local credential compromise and enforce strong authentication mechanisms to reduce the likelihood of attackers gaining local access.
- Implement endpoint detection and response (EDR) tools capable of monitoring inter-process communications and detecting exploitation attempts targeting update utilities.
- In environments where immediate patching is not feasible, temporarily disabling or restricting the UpdateNavi service may be considered, balancing operational impact against security risk.
Description
Improper restriction of communication channel to intended endpoints issue exists in UpdateNavi V1.4 L10 to L33 and UpdateNaviInstallService Service 1.2.0091 to 1.2.0125. If a local authenticated attacker send malicious data, an arbitrary registry value may be modified or arbitrary code may be executed.