Is CVE-2026-41080 in the CISA KEV catalog?

No. CVE-2026-41080 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-41080?

CVE-2026-41080 has a CVSS v3 base score of 2.9 (Low).

What is the EPSS score for CVE-2026-41080?

CVE-2026-41080 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41080?

Upgrade expat on debian unstable to 2.8.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2026-41080

LOW

2.9

CVSS v3

NVD

Description

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.

CWE-331

How to fix

Remediation Available

expatDebian

Fixed in:2.8.0-1CVE-2026-41080

expatRed Hat / RHEL

Fixed in:main@srcRHSA-2026:11004

Fixed in:main@x86_64RHSA-2026:11004

Fixed in:main@aarch64RHSA-2026:11004

expatRocky

Fixed in:main@aarch64RHSA-2026:11004

Fixed in:main@srcRHSA-2026:11004

Fixed in:main@x86_64RHSA-2026:11004

expatUbuntu

Fixed in:2.1.0-7ubuntu0.16.04.5+esm12USN-8520-1

libexpat1Ubuntu

Fixed in:2.1.0-7ubuntu0.16.04.5+esm12USN-8520-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Patch1

github.com

Issue Tracking1

github.com

Mailing List2

Release Notes1

blog.hartwork.org

Other references1

cert-portal.siemens.com

Related Vulnerabilities

Other CWE-331 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2008-1447	Medium	6.8	95%	-	Fix
CVE-2018-18326	High	7.5	54%	-	-
CVE-2018-15812	High	7.5	47%	-	-
CVE-2023-38357	Medium	5.3	5.3%	-	Fix
CVE-2015-3405	High	7.5	5.3%	-	Fix
CVE-2008-2108	Critical	9.8	4.3%	-	Fix

Embed a live status badge for CVE-2026-41080

Markdown

[![CVE-2026-41080](https://tridentstack.com/cve/badge/CVE-2026-41080.svg)](https://tridentstack.com/cve/CVE-2026-41080)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-41080"><img src="https://tridentstack.com/cve/badge/CVE-2026-41080.svg" alt="CVE-2026-41080"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

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 2026-07-14.