How severe is CVE-2025-0577?

CVE-2025-0577 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-0577 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-0577?

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

Does CVE-2025-0577 have an EU (EUVD) identifier?

Yes. CVE-2025-0577 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207796.

When was CVE-2025-0577 published?

CVE-2025-0577 was published on 2026-02-18 and last updated on 2026-06-17.

CVE-2025-0577

CVE-2025-0577 is a medium-severity vulnerability with a CVSS 3.x base score of 4.8. 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-331.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207796
Weakness: CWE-331
Published: 2026-02-18
Last modified: 2026-06-17

Description

An insufficient entropy vulnerability was found in glibc. The getrandom and arc4random family of functions may return predictable randomness if these functions are called again after the fork, which happens concurrently with a call to any of these functions.

Frequently asked questions

What is CVE-2025-0577?: An insufficient entropy vulnerability was found in glibc. The getrandom and arc4random family of functions may return predictable randomness if these functions are called again after the fork, which happens concurrently with a call to any of these functions.
How severe is CVE-2025-0577?: CVE-2025-0577 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-0577 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-0577?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-0577 have an EU (EUVD) identifier?: Yes. CVE-2025-0577 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207796.
When was CVE-2025-0577 published?: CVE-2025-0577 was published on 2026-02-18 and last updated on 2026-06-17.

References

Other CWE-331 vulnerabilities

CVE-2020-36925 — Critical (CVSS 9.8): Arteco Web Client DVR/NVR contains a session hijacking vulnerability with insufficient session ID complexity that…
CVE-2025-47781 — Critical (CVSS 9.8): Rallly is an open-source scheduling and collaboration tool. Versions up to and including 3.22.1 of the application…
CVE-2024-47945 — Critical (CVSS 9.8): The devices are vulnerable to session hijacking due to insufficient entropy in its session ID generation algorithm.…
CVE-2024-25730 — Critical (CVSS 9.8): Hitron CODA-4582 and CODA-4589 devices have default PSKs that are generated from 5-digit hex values concatenated with a…
CVE-2023-49599 — Critical (CVSS 9.8): An insufficient entropy vulnerability exists in the salt generation functionality of WWBN AVideo dev master commit…
CVE-2022-34294 — Critical (CVSS 9.8): totd 1.5.3 uses a fixed UDP source port in upstream queries sent to DNS resolvers. This allows DNS cache poisoning…

Browse all CWE-331 vulnerabilities →