Is CVE-2025-61873 in the CISA KEV catalog?

No. CVE-2025-61873 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-61873?

CVE-2025-61873 has a CVSS v3 base score of 2.6 (LOW).

What is the EPSS score for CVE-2025-61873?

CVE-2025-61873 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61873?

Upgrade request-tracker4 on debian 11 to 4.4.4+dfsg-2+deb11u5 or later.

CVE & CISA-KEV Catalog

CVE-2025-61873

LOW

2.6

CVSS v3

NVD

Description

Best Practical Request Tracker (RT) before 4.4.9, 5.0.9, and 6.0.2 allows CSV Injection via ticket values when TSV export is used.

CWE-1236

How to fix

Remediation Available

request-tracker4Debian

Fixed in:4.4.4+dfsg-2+deb11u5CVE-2025-61873

Fixed in:4.4.6+dfsg-1.1+deb12u3CVE-2025-61873

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 ComplexityHigh

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Other references1

docs.bestpractical.com

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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 2026-01-26.