Is CVE-2019-5481 in the CISA KEV catalog?

No. CVE-2019-5481 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-5481?

CVE-2019-5481 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-5481?

CVE-2019-5481 has an EPSS score of 7.27% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-5481?

Upgrade curl on debian 11 to 7.66.0-1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2019-5481

CRITICALEPSS 94th pctl

9.8

CVSS v3

NVD

Description

Double-free vulnerability in the FTP-kerberos code in cURL 7.52.0 to 7.65.3.

CWE-415

How to fix

Remediation Available

curlDebian

Fixed in:7.66.0-1CVE-2019-5481

curlUbuntu

Fixed in:7.47.0-1ubuntu2.14USN-4129-1

Fixed in:7.58.0-2ubuntu3.8USN-4129-1

libcurl3Ubuntu

Fixed in:7.47.0-1ubuntu2.14USN-4129-1

libcurl3-gnutlsUbuntu

Fixed in:7.47.0-1ubuntu2.14USN-4129-1

Fixed in:7.58.0-2ubuntu3.8USN-4129-1

libcurl3-nssUbuntu

Fixed in:7.47.0-1ubuntu2.14USN-4129-1

Fixed in:7.58.0-2ubuntu3.8USN-4129-1

libcurl4Ubuntu

Fixed in:7.58.0-2ubuntu3.8USN-4129-1

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.27%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch3

Vendor Advisory1

curl.haxx.se

Third-Party Advisory6

Other references3

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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 2026-04-16.