CVE-2016-0736

mediumpriority · attend · 57EPSS 0.490 · 99 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

49.0% (99th) EPSS

CVSS 5 · medium

Is it mine?

21 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-310USprimaryCWE-310US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-40961Apache mod_session_crypto - Padding OraclePoC · exploit_db

affected products (21)

Products and version ranges known to be affected.

Apple macOS <10.13all versionscert_bundDE
Apple macOS< 10.13cert_bundDE
Apache Software Foundation Apache HTTP Server≤ 2.4.0 to 2.4.23enisa_euvdEU
Apache Software Foundation HTTP Serverверсии 2.4.0 → версии 2.4.23fstec_bduRU
apache http server= 2.4.0nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.1nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.10nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.12nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.14nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.16nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.19nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.2nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.20nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.21nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.22nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.23nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.3nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.6nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.7nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.4.8nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

showing 20 of 21

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0370Apple Mac OS: Mehrere SchwachstellenDeutsch2017-09-25csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstelle in Apple Mac OS ausnutzen, um Code mit Kernel Privilegien auszuführen, Sicherheitsvorkehrungen zu umgehen, einen Denial of Service Angriff durchzuführen oder vertrauliche Daten einzusehen.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2017-07-27modified 2026-06-17

related (2,918)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2020-1464US	low2.1OT critical	38.9% (99th)	KEV	2020-08-17
A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and loa…
CVE-2013-7331US	medium4.3OT critical	50.2% (99th)	KEV	2014-02-26
The Microsoft.XMLDOM ActiveX control in Microsoft Windows 8.1 and earlier allows remote attackers to determine the existence of local pathnames, UNC share pathnames, intranet hostn…
CVE-2013-3900US	high7.6OT critical	44.6% (99th)	KEV	2013-12-11
Why is Microsoft republishing a CVE from 2013? We are republishing CVE-2013-3900 in the Security Update Guide to update the Security Updates table and to inform customers that the…
CVE-2014-8684US	critical9.8	71.7% (99th)	Exploit	2017-09-19
CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it easier for remote attackers to spoof session cookies and consequently conduct PHP object injecti…
CVE-2016-2107US	medium5.9	89.1% (100th)	Exploit	2016-05-05
The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory allocation during a certain padding check, which allows remote attackers to obta…

+2913 more

references (85)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan