Is CVE-2025-27111 in the CISA KEV catalog?

No. CVE-2025-27111 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-27111?

CVE-2025-27111 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2025-27111?

CVE-2025-27111 has an EPSS score of 0.70% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-27111?

Upgrade ruby-rack on debian 11 to 2.1.4-3+deb11u3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-27111

HIGH

7.5

CVSS v3

NVD

Description

Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitised header values from the X-Sendfile-Type header. An attacker can exploit this by injecting escape sequences (such as newline characters) into the header, resulting in log injection. This vulnerability is fixed in 2.2.12, 3.0.13, and 3.1.11.

CWE-93 CWE-117

How to fix

Remediation Available

ruby-rackDebian

Fixed in:2.1.4-3+deb11u3CVE-2025-27111

Fixed in:2.2.13-1~deb12u1CVE-2025-27111

Fixed in:3.1.12-1CVE-2025-27111

ruby-rackUbuntu

Fixed in:1.5.2-3+deb8u3ubuntu1~esm9USN-7366-1

Fixed in:1.6.4-3ubuntu0.2+esm7USN-7366-1

Fixed in:1.6.4-4ubuntu0.2+esm7USN-7366-1

Fixed in:2.0.7-2ubuntu0.1+esm6USN-7366-1

Fixed in:2.1.4-5ubuntu1.1+esm1USN-7366-1

Fixed in:2.2.7-1ubuntu0.2USN-7366-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.70%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Patch3

Vendor Advisory1

github.com

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-93 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-61884	High	7.5	98%	KEV + Ransom	-
CVE-2022-0666	High	7.5	44%	-	Fix
CVE-2016-3115	Medium	6.4	37%	-	Fix
CVE-2024-20337	High	8.2	30%	-	Fix
CVE-2021-39172	High	8.8	29%	-	Fix
CVE-2016-4975	Medium	6.1	20%	-	Fix

Embed a live status badge for CVE-2025-27111

Markdown

[![CVE-2025-27111](https://tridentstack.com/cve/badge/CVE-2025-27111.svg)](https://tridentstack.com/cve/CVE-2025-27111)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-27111"><img src="https://tridentstack.com/cve/badge/CVE-2025-27111.svg" alt="CVE-2025-27111"></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 2025-11-03.