How severe is CVE-2025-15638?

CVE-2025-15638 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-15638 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15638?

CVE-2025-15638 affects Atrodo Net. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15638?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-15638 have an EU (EUVD) identifier?

Yes. CVE-2025-15638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209545.

When was CVE-2025-15638 published?

CVE-2025-15638 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2025-15638

CVE-2025-15638 is a critical-severity vulnerability in Atrodo Net with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209545
Affected product: Atrodo Net
Published: 2026-04-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-15638?: 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.
How severe is CVE-2025-15638?: CVE-2025-15638 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-15638 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15638?: CVE-2025-15638 affects Atrodo Net. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15638?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-15638 have an EU (EUVD) identifier?: Yes. CVE-2025-15638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209545.
When was CVE-2025-15638 published?: CVE-2025-15638 was published on 2026-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atrodo:net\:\:dropbear:*:*:*:*:*:perl:*:*