How severe is CVE-2025-48959?

CVE-2025-48959 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-48959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-48959?

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

Does CVE-2025-48959 have an EU (EUVD) identifier?

Yes. CVE-2025-48959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16868.

When was CVE-2025-48959 published?

CVE-2025-48959 was published on 2025-06-04 and last updated on 2026-06-17.

CVE-2025-48959

CVE-2025-48959 is a medium-severity vulnerability with a CVSS 3.x base score of 6.7. 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-16868
Weakness: CWE-276
Published: 2025-06-04
Last modified: 2026-06-17

Description

Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Cyber Protect Cloud Agent (Windows) before build 40077.

Frequently asked questions

What is CVE-2025-48959?: Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Cyber Protect Cloud Agent (Windows) before build 40077.
How severe is CVE-2025-48959?: CVE-2025-48959 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-48959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-48959?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-48959 have an EU (EUVD) identifier?: Yes. CVE-2025-48959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16868.
When was CVE-2025-48959 published?: CVE-2025-48959 was published on 2025-06-04 and last updated on 2026-06-17.

References

https://security-advisory.acronis.com/advisories/SEC-8133

Other CWE-276 (Incorrect Default Permissions) vulnerabilities

CVE-2022-42150 — Critical (CVSS 10.0): TinyLab linux-lab v1.1-rc1 and cloud-labv0.8-rc2, v1.1-rc1 are vulnerable to insecure permissions. The default…
CVE-2020-29492 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2020-29491 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2025-40585 — Critical (CVSS 9.9): A vulnerability has been identified in Energy Services (All versions with G5DFR). Affected solutions using G5DFR…
CVE-2019-19896 — Critical (CVSS 9.9): In IXP EasyInstall 6.2.13723, there is Remote Code Execution via weak permissions on the Engine Service share. The…
CVE-2020-37129 — Critical (CVSS 9.8): Memu Play 7.1.3 contains an insecure folder permissions vulnerability that allows low-privileged users to modify the…

Browse all CWE-276 (Incorrect Default Permissions) vulnerabilities →