CVE-2016-5004

Exp

The Content-Encoding HTTP header feature in ws-xmlrpc 3.1.3 as used in Apache Archiva allows remote attackers to cause a denial of service (resource consumption) by decompressing a large file containing zeroes.

Published: 2017-06-06 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5004 is rated High Exploit Risk (78.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.44%, 93th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +5.33% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2016-5004

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2016-5004

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 2026-06-15 1.11% 6.44% +5.33%
2 2025-12-25 1.27% 1.11% -0.17%
3 2025-10-30 — 1.27% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5004

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful 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 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-5004

GitHub Security Advisory for CVE-2016-5004

OS Trackers for CVE-2016-5004

vendor priority summary link
redhat low — https://access.redhat.com/security/cve/CVE-2016-5004

Affected software / configurations for CVE-2016-5004

Vendor Product Version Raw CPE
apache ws-xmlrpc 3.1.3 cpe:2.3:a:apache:ws-xmlrpc:3.1.3:*:*:*:*:*:*:*

References for CVE-2016-5004

cvelogic Threat Intelligence