Is CVE-2025-41259 in the CISA KEV catalog?

No. CVE-2025-41259 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-41259?

CVE-2025-41259 has a CVSS v4 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2025-41259?

CVE-2025-41259 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-41259?

Upgrade swupdate on debian unstable to 2026.05+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2025-41259

HIGH

7.3

CVSS v4

NVD

Description

SWUpdate before 2026.05 is affected by a time-of-check time-of-use (TOCTOU) race condition that allows local unprivileged attackers to escalate privileges to root or install untrusted contents using a signed update.

CWE-367TOCTOU Race Condition

How to fix

Remediation Available

swupdateDebian

Fixed in:2026.05+dfsg-1CVE-2025-41259

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v4 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.