How severe is CVE-2018-25025?

CVE-2018-25025 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-25025 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-25025?

CVE-2018-25025 affects Actix Actix-web. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-25025?

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

When was CVE-2018-25025 published?

CVE-2018-25025 was published on 2021-12-27 and last updated on 2026-06-17.

CVE-2018-25025

CVE-2018-25025 is a critical-severity vulnerability in Actix Actix-web with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Actix Actix-web
Published: 2021-12-27
Last modified: 2026-06-17

Description

An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can unsoundly extend the lifetime of a string, leading to memory corruption.

Frequently asked questions

What is CVE-2018-25025?: An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can unsoundly extend the lifetime of a string, leading to memory corruption.
How severe is CVE-2018-25025?: CVE-2018-25025 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-25025 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-25025?: CVE-2018-25025 affects Actix Actix-web. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-25025?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-25025 published?: CVE-2018-25025 was published on 2021-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:actix:actix-web:*:*:*:*:*:rust:*:*

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CVE-2018-25026 — Critical (CVSS 9.8): An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can add the Send marker trait to an object…
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