Malicious Key Exchange Messages may Lead to Excessive Resource Consumption

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2025-48040
StatePUBLISHED
AssignerEEF
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-11 09:15:34 UTC
Updated2026-04-06 17:17:03 UTC
DescriptionUncontrolled Resource Consumption vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Flooding. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl. This issue affects OTP form OTP 17.0 until OTP 28.0.3, OTP 27.3.4.3 and 26.2.5.15 corresponding to ssh from 3.0.1 until 5.3.3, 5.2.11.3 and 5.1.4.12.

Risk And Classification

Primary CVSS: v4.0 6.9 MEDIUM from 6b3ad84c-e1a6-4bf7-a703-f496b71e49db

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-400 | CWE-770 | CWE-400 CWE-400 Uncontrolled Resource Consumption | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
4.06b3ad84c-e1a6-4bf7-a703-f496b71e49dbSecondary6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Erlang OTP affected 3.0.1 * otp Not specified
CNA Erlang OTP affected 17.0 * otp Not specified
CNA Erlang OTP affected 07b8f441ca711f9812fad9e9115bab3c3aa92f79 * git Not specified

References

ReferenceSourceLinkTags
osv.dev/vulnerability/EEF-CVE-2025-48040 6b3ad84c-e1a6-4bf7-a703-f496b71e49db osv.dev
github.com/erlang/otp/security/advisories/GHSA-h7rg-6rjg-4cph 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
github.com/erlang/otp/pull/10162 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
www.erlang.org/doc/system/versions.html 6b3ad84c-e1a6-4bf7-a703-f496b71e49db www.erlang.org
github.com/erlang/otp/commit/548f1295d86d0803da884db8685cc16d461d0d5a 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
github.com/erlang/otp/commit/7cd7abb7e19e16b027eaee6a54e1f6fbbe21181a 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
cna.erlef.org/cves/CVE-2025-48040.html 6b3ad84c-e1a6-4bf7-a703-f496b71e49db cna.erlef.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Jakub Witczak (en)

CNA: Ingela Andin (en)

Additional Advisory Data

Workarounds

CNA: * set option parallel_login to false * reduce max_sessions option

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