CVE-2016-0736

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-310

Affected software

VendorProductVersions
Apache Software FoundationApache HTTP Server2.4.0 to 2.4.23

References

Timeline

Published
Jul 27, 2017
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2016-0736: High severity, CVSS 7.5 | Vulnix