CVE-2016-3033

IBM AppScan Source 8.7 through 9.0.3.3 allows remote authenticated users to read arbitrary files or cause a denial of service (memory consumption) via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Published: 2016-12-01 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-3033 is rated Moderate Risk (54.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.55%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-3033

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.26% 0.55% -0.71%
2 2025-03-29 0.55% 1.26% +0.71%
3 2025-03-19 — 0.55% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3033

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.2 [email protected]
5.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 4.9 [email protected]

Weakness enumeration for CVE-2016-3033

Affected software / configurations for CVE-2016-3033

Vendor Product Version Raw CPE
ibm appscan_source 8.7 cpe:2.3:a:ibm:appscan_source:8.7:*:*:*:*:*:*:*
ibm appscan_source 8.7.0.1 cpe:2.3:a:ibm:appscan_source:8.7.0.1:*:*:*:*:*:*:*
ibm appscan_source 8.8 cpe:2.3:a:ibm:appscan_source:8.8:*:*:*:*:*:*:*
ibm appscan_source 9.0 cpe:2.3:a:ibm:appscan_source:9.0:*:*:*:*:*:*:*
ibm appscan_source 9.0.0.1 cpe:2.3:a:ibm:appscan_source:9.0.0.1:*:*:*:*:*:*:*
ibm appscan_source 9.0.1 cpe:2.3:a:ibm:appscan_source:9.0.1:*:*:*:*:*:*:*
ibm appscan_source 9.0.2 cpe:2.3:a:ibm:appscan_source:9.0.2:*:*:*:*:*:*:*
ibm appscan_source 9.0.3 cpe:2.3:a:ibm:appscan_source:9.0.3:*:*:*:*:*:*:*
ibm appscan_source 9.0.3.1 cpe:2.3:a:ibm:appscan_source:9.0.3.1:*:*:*:*:*:*:*
ibm appscan_source 9.0.3.2 cpe:2.3:a:ibm:appscan_source:9.0.3.2:*:*:*:*:*:*:*
ibm appscan_source 9.0.3.3 cpe:2.3:a:ibm:appscan_source:9.0.3.3:*:*:*:*:*:*:*

References for CVE-2016-3033

cvelogic Threat Intelligence