What’s Vulnerable › Vulnerabilities

CVE-2025-48040: Malicious Key Exchange Messages may Lead to Excessive Resource Consumption

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-11 · updated 2026-07-24
• Weakness: CWE-400

Description

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.

Affected products

• Erlang OTP: from 3.0.1; from 17.0

References

• https://cna.erlef.org/cves/CVE-2025-48040.html
• 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/security/advisories/GHSA-h7rg-6rjg-4cph
• https://osv.dev/vulnerability/EEF-CVE-2025-48040
• https://www.erlang.org/doc/system/versions.html#order-of-versions

Get alerted when CVE-2025-48040 or the next vulnerability affects your stack