CVE & CISA-KEV Catalog

CVE-2025-15079

MEDIUM
5.3
CVSS v3
NVD

Description

When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.

How to fix

Remediation Available
curlDebian
Fixed in:8.18.0~rc3-1CVE-2025-15079
curlUbuntu
Fixed in:7.35.0-1ubuntu2.20+esm19USN-8062-2
Fixed in:7.47.0-1ubuntu2.19+esm15USN-8062-2
Fixed in:7.58.0-2ubuntu3.24+esm7USN-8062-2
Fixed in:7.68.0-1ubuntu2.25+esm2USN-8062-2
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
Fixed in:8.5.0-2ubuntu10.7USN-8062-1
Fixed in:8.14.1-2ubuntu1.1USN-8062-1
libcurl3Ubuntu
Fixed in:7.35.0-1ubuntu2.20+esm19USN-8062-2
Fixed in:7.47.0-1ubuntu2.19+esm15USN-8062-2
libcurl3-gnutlsUbuntu
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
libcurl3-nssUbuntu
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
libcurl3t64-gnutlsUbuntu
Fixed in:8.5.0-2ubuntu10.7USN-8062-1
Fixed in:8.14.1-2ubuntu1.1USN-8062-1
libcurl4Ubuntu
Fixed in:7.58.0-2ubuntu3.24+esm7USN-8062-2
Fixed in:7.68.0-1ubuntu2.25+esm2USN-8062-2
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
libcurl4-gnutls-devUbuntu
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
Fixed in:8.5.0-2ubuntu10.7USN-8062-1
Fixed in:8.14.1-2ubuntu1.1USN-8062-1
libcurl4-nss-devUbuntu
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
libcurl4-openssl-devUbuntu
Fixed in:7.81.0-1ubuntu1.22USN-8062-1
Fixed in:8.5.0-2ubuntu10.7USN-8062-1
Fixed in:8.14.1-2ubuntu1.1USN-8062-1
libcurl4t64Ubuntu
Fixed in:8.5.0-2ubuntu10.7USN-8062-1
Fixed in:8.14.1-2ubuntu1.1USN-8062-1

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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 RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.47%probability of exploitation in 30 days
39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-297 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-3522Medium4.05.6%-Fix
CVE-2018-10936High8.12.9%-Fix
CVE-2024-2466Medium6.51.3%-Fix
CVE-2020-1887Critical9.11.3%-Fix
CVE-2020-14387High7.41.1%-Fix
CVE-2020-15260Medium6.81.0%-Fix

Common questions

How do I fix CVE-2025-15079?

Published advisories record a fix for 11 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-15079 being actively exploited?

Not that we know of. CVE-2025-15079 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.47% is the estimated probability that it will be exploited in the next 30 days. That is higher than 39% of all scored CVEs.

How severe is CVE-2025-15079?

CVE-2025-15079 has a CVSS v3 base score of 5.3, rated moderate. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-15079 affect?

Published advisories record a fix for curl (Debian), curl (Ubuntu), libcurl3 (Ubuntu), libcurl3-gnutls (Ubuntu), and 7 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2026-01-20.