What is CVE-2022-40705?

CVE-2022-40705 is a high-severity vulnerability in Apache Soap, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2022-09-22.

How severe is CVE-2022-40705?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Apache Soap

CVE-2022-40705

An Improper Restriction of XML External Entity Reference vulnerability in RPCRouterServlet of Apache SOAP allows an attacker to read arbitrary files over HTTP. This issue affects Apache SOAP version 2.2 and later versions. It is unknown whether previous versions are also affected. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Vulnerability class: XXE (XML External Entity)

Published 2022-09-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.019 (79.0th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.019 · change: +0.003

Affected products

Apache Soap
Apache Software Foundation Soap — versions 2.2

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

lists.apache.org/thread/02yo04w93rdjmllz4454lvodn5xzhwhl (Mailing List, Vendor Advisory)
www.openwall.com/lists/oss-security/2022/09/22/1 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-40705?: CVE-2022-40705 is a high-severity vulnerability in Apache Soap, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2022-09-22.
How severe is CVE-2022-40705?: High severity. CVSS v3 base score is 7.5 out of 10.