CVE-2025-48039: Unverified Paths can Cause Excessive Use of System Resources

Published Sep 11, 2025
·
Updated

Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (sshsftp modules) allows Excessive Allocation, Resource Leak Exposure. This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl. This issue affects OTP from OTP 17.0 before OTP 28.0.3, OTP 27.3.4.3 and OTP 26.2.5.15, corresponding to ssh from 3.0.1 before 5.3.3, 5.2.11.3 and 5.1.4.12.

Other sources

Unverified Paths can Cause Excessive Use of System Resources

— Microsoft

Affected Software

14 affected componentsFixes available
Erlang OTP>=17.0<28.0.3
Erlang ssh>=3.0.1<5.3.3
Microsoft cbl2 erlang 25.3.2.21-2
Microsoft azl3 erlang 26.2.5.13-1
Microsoft cbl2 erlang 25.3.2.21-2
Microsoft cbl2 erlang 25.3.2.21-4
ubuntu/erlang<1:16.b.3-dfsg-1ubuntu2.2+esm1
1:16.b.3-dfsg-1ubuntu2.2+esm1
ubuntu/erlang<1:18.3-dfsg-1ubuntu3.1+esm2
1:18.3-dfsg-1ubuntu3.1+esm2
ubuntu/erlang<1:20.2.2+dfsg-1ubuntu2+esm2
1:20.2.2+dfsg-1ubuntu2+esm2
ubuntu/erlang<1:22.2.7+dfsg-1ubuntu0.5+esm1
1:22.2.7+dfsg-1ubuntu0.5+esm1
ubuntu/erlang<1:24.2.1+dfsg-1ubuntu0.6
1:24.2.1+dfsg-1ubuntu0.6
ubuntu/erlang<1:25.3.2.8+dfsg-1ubuntu4.5
1:25.3.2.8+dfsg-1ubuntu4.5
ubuntu/erlang<1:27.3.4.1+dfsg-1ubuntu0.1
1:27.3.4.1+dfsg-1ubuntu0.1
debian/erlang<=1:25.2.3+dfsg-1+deb12u1
1:25.2.3+dfsg-1+deb12u41:27.3.4.1+dfsg-1+deb13u31:27.3.4.1+dfsg-1+deb13u41:29.1.1+dfsg-11:29.1.2+dfsg-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:16.b.3-dfsg-1ubuntu2.2+esm1
  2. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:18.3-dfsg-1ubuntu3.1+esm2
  3. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:20.2.2+dfsg-1ubuntu2+esm2
  4. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:22.2.7+dfsg-1ubuntu0.5+esm1
  5. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:24.2.1+dfsg-1ubuntu0.6
  6. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:25.3.2.8+dfsg-1ubuntu4.5
  7. Upgrade

    Upgrade ubuntu/erlang to a version that resolves this vulnerability.

    Fixed in 1:27.3.4.1+dfsg-1ubuntu0.1
  8. Upgrade

    Upgrade debian/erlang to a version that resolves this vulnerability.

    Fixed in 1:25.2.3+dfsg-1+deb12u4Fixed in 1:27.3.4.1+dfsg-1+deb13u3Fixed in 1:27.3.4.1+dfsg-1+deb13u4Fixed in 1:29.1.1+dfsg-1Fixed in 1:29.1.2+dfsg-1

Event History

Sep 11, 2025
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·08:13 AM
Data Sourced
via MITRE·08:13 AM
DescriptionWeakness
Data Sourced
via OSV·09:15 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeakness
Sep 12, 2025
Data Sourced
via Microsoft·01:09 AM
DescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-48039?

CVE-2025-48039 is considered to have a moderate severity level due to the potential for resource leaks.

2

How do I fix CVE-2025-48039?

To fix CVE-2025-48039, upgrade Erlang OTP to a version higher than 28.0.3.

3

Which versions are affected by CVE-2025-48039?

CVE-2025-48039 affects Erlang OTP versions from 17.0 up to 28.0.3.

4

What components of Erlang are impacted by CVE-2025-48039?

CVE-2025-48039 impacts the ssh_sftp modules in Erlang OTP.

5

Is there any known workaround for CVE-2025-48039?

There are no known workarounds for CVE-2025-48039, so upgrading to a safe version is recommended.

Contact

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