What is CVE-2020-7226?

CVE-2020-7226 is a high-severity vulnerability in Oracle Communications Services Gatekeeper, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-01-24.

How severe is CVE-2020-7226?

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

Resource exhaustion in Oracle Communications Services Gatekeeper

CVE-2020-7226

CiphertextHeader.java in Cryptacular 1.2.3, as used in Apereo CAS and other products, allows attackers to trigger excessive memory allocation during a decode operation, because the nonce array length associated with "new byte" may depend on untrusted input within the header of encoded data.

Published 2020-01-24 · 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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.033 (88.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000

Affected products

Oracle Communications Services Gatekeeper — versions 7.0
Oracle Webcenter Sites — versions 12.2.1.3.0, 12.2.1.4.0
Oracle Weblogic Server — versions 12.2.1.4.0, 14.1.1.0.0
Vt Cryptacular

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

lists.apache.org/thread.html/rc36b75cabb4d700b48035d15ad8b8c2712bb32123572a1bda… (mailing-list)
lists.apache.org/thread.html/re04e4f8f0d095387fb6b0ff9016a0af8c93f42e1de93b0929… (mailing-list)
lists.apache.org/thread.html/rfa4647c58e375996e62a9094bffff6dc350ec311ba955b430… (mailing-list)
lists.apache.org/thread.html/r380781f5b489cb3c818536cd3b3757e806bfe0bca188591e0… (mailing-list)
lists.apache.org/thread.html/re7f46c4cc29a4616e0aa669c84a0eb34832e83a8eef05189e… (mailing-list)
lists.apache.org/thread.html/r209de85beae4d257d27fc577e3a3e97039bdb4c2dc6f4a8e5… (mailing-list)
lists.apache.org/thread.html/r0847c7eb78c8f9e87d5b841fbd5da52b2ad4b4345e04b51c3… (mailing-list)
lists.apache.org/thread.html/r2237a27040b57adc2fcc5570bd530ad2038e67fcb2a3ce652… (mailing-list)
lists.apache.org/thread.html/r77c48cd851f60833df9a9c9c31f12243508e15d1b2a096106… (mailing-list)
lists.apache.org/thread.html/r4a62133ad01d5f963755021027a4cce23f76b8674a13860d2… (mailing-list)

Frequently asked questions

What is CVE-2020-7226?: CVE-2020-7226 is a high-severity vulnerability in Oracle Communications Services Gatekeeper, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-01-24.
How severe is CVE-2020-7226?: High severity. CVSS v3 base score is 7.5 out of 10.