Medium
Malicious Key Exchange Messages may Lead to Excessive Resource Consumption
Type: advisorySources: OSV
Uncontrolled 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 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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-48040
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:09 UTC · Revision 1
Source evidence
Malicious Key Exchange Messages may Lead to Excessive Resource Consumption
core-osv · Original sourcePublished 11 Sept 2025, 08:14 UTC
Uncontrolled 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 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.
osv:CVE-2025-48040
Complete source record
{
"id": "fc2e1dcfc9dcb64f5de31fd8b1114aa673d5d86ea3cece8d88780acc02e083f4",
"url": "https://osv.dev/vulnerability/CVE-2025-48040",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Malicious Key Exchange Messages may Lead to Excessive Resource Consumption",
"summary": "Uncontrolled 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 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.",
"evidence": "osv:CVE-2025-48040",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-48040",
"aliases": [
"CVE-2025-48040",
"EEF-CVE-2025-48040",
"GHSA-h7rg-6rjg-4cph"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/erlang/otp",
"type": "GIT",
"events": [
{
"introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
},
{
"fixed": "7cd7abb7e19e16b027eaee6a54e1f6fbbe21181a"
},
{
"fixed": "756621cebe01ec43df61d9627380ca7e1e301c9b"
},
{
"fixed": "548f1295d86d0803da884db8685cc16d461d0d5a"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
},
{
"fixed": "7cd7abb7e19e16b027eaee6a54e1f6fbbe21181a"
}
],
"source": "AFFECTED_FIELD",
"strategy": "ChangesAt"
},
{
"range": [
{
"introduced": "17.0"
},
{
"fixed": "28.0.3"
}
],
"source": "AFFECTED_FIELD",
"strategy": "ChangesAt"
},
{
"range": [
{
"fixed": "7cd7abb7e19e16b027eaee6a54e1f6fbbe21181a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "548f1295d86d0803da884db8685cc16d461d0d5a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"patch-base-27",
"OTP-27.3.4",
"patch-base-26",
"OTP-26.2.5",
"OTP-27.0",
"OTP-26.2.5.9",
"OTP-28.0",
"OTP-26.2.5.12",
"OTP-27.3",
"OTP-26.2.3",
"OTP-27.3.3",
"OTP-26.2.5.14",
"OTP-28.0.2",
"OTP-26.0",
"OTP-28.0.1",
"OTP-26.2.5.13",
"OTP-25.0",
"OTP-28.0-rc4",
"OTP-26.2.5.11",
"OTP-27.3.2",
"OTP-28.0-rc3",
"OTP-26.2.5.10",
"OTP-27.2",
"OTP-28.0-rc2",
"OTP-27.3.1",
"OTP-28.0-rc1",
"OTP-26.2.5.8",
"OTP-26.2.5.7",
"OTP-26.2.5.6",
"OTP-27.1",
"OTP-26.2.5.5",
"OTP-26.2.5.4",
"OTP-26.2.5.3",
"OTP-26.2",
"OTP-26.2.5.2",
"OTP-26.2.5.1",
"OTP-26.2.4",
"OTP-27.0-rc3",
"OTP-27.0-rc2",
"OTP-27.0-rc1",
"OTP-24.0",
"OTP-26.1",
"OTP-26.0-rc3",
"OTP-26.0-rc2",
"OTP-26.0-rc1",
"OTP-23.0",
"OTP-21.0",
"OTP-25.0-rc3",
"OTP-25.0-rc2",
"OTP-25.0-rc1",
"OTP-22.0",
"OTP-24.0-rc3",
"OTP-24.0-rc2",
"OTP-24.0-rc1",
"OTP-23.0-rc3",
"OTP-23.0-rc2",
"OTP-23.0-rc1",
"OTP-20.0",
"OTP-22.0-rc3",
"OTP-22.0-rc2",
"OTP-22.0-rc1",
"OTP-19.0",
"OTP-21.0-rc2",
"OTP-18.0",
"OTP-21.0-rc1",
"OTP-17.0",
"OTP-20.0-rc2",
"OTP-20.0-rc1",
"OTP-19.0-rc2",
"OTP-19.0-rc1",
"OTP-18.0-rc1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48040.json"
}
}
],
"modified": "2026-10-28T02:30:52.669256603Z",
"provider": "osv",
"references": [
"https://cna.erlef.org/cves/CVE-2025-48040.html",
"https://github.com",
"https://osv.dev/vulnerability/EEF-CVE-2025-48040",
"https://www.erlang.org/doc/system/versions.html#order-of-versions",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48040.json",
"https://github.com/erlang/otp/security/advisories/GHSA-h7rg-6rjg-4cph",
"https://nvd.nist.gov/vuln/detail/CVE-2025-48040",
"https://github.com/erlang/otp/commit/548f1295d86d0803da884db8685cc16d461d0d5a",
"https://github.com/erlang/otp/commit/7cd7abb7e19e16b027eaee6a54e1f6fbbe21181a",
"https://github.com/erlang/otp/pull/10162",
"https://github.com/erlang/otp"
],
"provider_metadata": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"cna_assigner": "EEF",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "3.0.1"
},
{
"fixed": "5.3.3"
}
],
"source": "AFFECTED_FIELD",
"strategy": "ChangesAt"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48040.json"
}
},
"related_cves": [
{
"value": "CVE-2025-48040",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521218,
"published_at": "2025-09-11T08:14:19.671+00:00"
}