How severe is CVE-2025-11146?

CVE-2025-11146 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-11146 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11146?

CVE-2025-11146 affects Apt-cacher-ng Project Apt-cacher-ng. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-11146?

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

Does CVE-2025-11146 have an EU (EUVD) identifier?

Yes. CVE-2025-11146 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31567.

When was CVE-2025-11146 published?

CVE-2025-11146 was published on 2025-09-29 and last updated on 2026-06-17.

CVE-2025-11146

CVE-2025-11146 is a medium-severity vulnerability in Apt-cacher-ng Project Apt-cacher-ng with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31567
Weakness: CWE-79
Affected product: Apt-cacher-ng Project Apt-cacher-ng
Published: 2025-09-29
Last modified: 2026-06-17

Description

Reflected Cross-site scripting (XSS) in Apt-Cacher-NG v3.2.1. The vulnerability allows an attacker to execute malicious scripts (XSS) in the web management application. The vulnerability is caused by improper handling of GET inputs included in the URL in “/acng-report.html”.

Frequently asked questions

What is CVE-2025-11146?: Reflected Cross-site scripting (XSS) in Apt-Cacher-NG v3.2.1. The vulnerability allows an attacker to execute malicious scripts (XSS) in the web management application. The vulnerability is caused by improper handling of GET inputs included in the URL in “/acng-report.html”.
How severe is CVE-2025-11146?: CVE-2025-11146 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-11146 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11146?: CVE-2025-11146 affects Apt-cacher-ng Project Apt-cacher-ng. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-11146?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-11146 have an EU (EUVD) identifier?: Yes. CVE-2025-11146 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31567.
When was CVE-2025-11146 published?: CVE-2025-11146 was published on 2025-09-29 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-apt-cacher-ng

Affected products (1)

cpe:2.3:a:apt-cacher-ng_project:apt-cacher-ng:3.2-1:*:*:*:*:*:*:*

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