How severe is CVE-2026-35369?

CVE-2026-35369 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-35369 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35369?

CVE-2026-35369 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35369?

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

Does CVE-2026-35369 have an EU (EUVD) identifier?

Yes. CVE-2026-35369 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25017.

When was CVE-2026-35369 published?

CVE-2026-35369 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-35369

CVE-2026-35369 is a medium-severity vulnerability in Uutils Coreutils with a CVSS 3.x base score of 5.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25017
Weakness: CWE-20
Affected product: Uutils Coreutils
Published: 2026-04-22
Last modified: 2026-06-17

Description

An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal (SIGTERM) to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massive process termination. This differs from GNU coreutils, which correctly recognizes -1 as a signal number in this context and would instead report a missing PID argument.

Frequently asked questions

What is CVE-2026-35369?: An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal (SIGTERM) to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massive process termination. This differs from GNU coreutils, which correctly recognizes -1 as a signal number in this context and would instead report a missing PID argument.
How severe is CVE-2026-35369?: CVE-2026-35369 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-35369 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35369?: CVE-2026-35369 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35369?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35369 have an EU (EUVD) identifier?: Yes. CVE-2026-35369 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25017.
When was CVE-2026-35369 published?: CVE-2026-35369 was published on 2026-04-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*

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