How severe is CVE-2021-25908?

CVE-2021-25908 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-25908 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25908?

CVE-2021-25908 affects Fil-ocl Project Fil-ocl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25908?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-25908 published?

CVE-2021-25908 was published on 2021-01-26 and last updated on 2026-06-17.

CVE-2021-25908

CVE-2021-25908 is a high-severity vulnerability in Fil-ocl Project Fil-ocl with a CVSS 3.x base score of 7.5. 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-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Fil-ocl Project Fil-ocl
Published: 2021-01-26
Last modified: 2026-06-17

Description

An issue was discovered in the fil-ocl crate through 2021-01-04 for Rust. From<EventList> can lead to a double free.

Frequently asked questions

What is CVE-2021-25908?: An issue was discovered in the fil-ocl crate through 2021-01-04 for Rust. From<EventList> can lead to a double free.
How severe is CVE-2021-25908?: CVE-2021-25908 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-25908 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25908?: CVE-2021-25908 affects Fil-ocl Project Fil-ocl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25908?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-25908 published?: CVE-2021-25908 was published on 2021-01-26 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2021-0011.html

Affected products (1)

cpe:2.3:a:fil-ocl_project:fil-ocl:*:*:*:*:*:rust:*:*

Other CWE-415 (Double Free) vulnerabilities

CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2026-8925 — Critical (CVSS 9.8): The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing…
CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…
CVE-2026-31608 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in…

Browse all CWE-415 (Double Free) vulnerabilities →