Is CVE-2025-15638 in the CISA KEV catalog?

No. CVE-2025-15638 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-15638?

CVE-2025-15638 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2025-15638?

CVE-2025-15638 has an EPSS score of 0.57% (43th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-15638

CRITICAL

10.0

CVSS v3

NVD

Description

Net::Dropbear versions before 0.14 for Perl contains a vulnerable version of libtomcrypt. Net::Dropbear versions before 0.14 includes versions of Dropbear 2019.78 or earlier. These include versions of libtomcrypt v1.18.1 or earlier, which is affected by CVE-2016-6129 and CVE-2018-12437.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

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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 2026-04-22.