How severe is CVE-2025-50691?

CVE-2025-50691 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-50691 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-50691?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-50691 have an EU (EUVD) identifier?

Yes. CVE-2025-50691 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25522.

When was CVE-2025-50691 published?

CVE-2025-50691 was published on 2025-08-22 and last updated on 2026-06-17.

CVE-2025-50691

CVE-2025-50691 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-266.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25522
Weakness: CWE-266
Published: 2025-08-22
Last modified: 2026-06-17

Description

MCSManager 10.5.3 daemon process runs as a root account by default, and its sensitive data (including tokens and terminal content) is stored in the data directory, readable by all users. Other users on the system can read the daemon's key and use it to log in, leading to privilege escalation.

Frequently asked questions

What is CVE-2025-50691?: MCSManager 10.5.3 daemon process runs as a root account by default, and its sensitive data (including tokens and terminal content) is stored in the data directory, readable by all users. Other users on the system can read the daemon's key and use it to log in, leading to privilege escalation.
How severe is CVE-2025-50691?: CVE-2025-50691 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-50691 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-50691?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-50691 have an EU (EUVD) identifier?: Yes. CVE-2025-50691 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25522.
When was CVE-2025-50691 published?: CVE-2025-50691 was published on 2025-08-22 and last updated on 2026-06-17.

References

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