HOMEVULNERABILITIESCVE-2013-4521
CRITICAL

CVE-2013-4521

CWE-502Published: February 6, 2020· Updated: Jun 16, 2026

9.8
CVSS v3.1

Official Description

RichFaces implementation in Nuxeo Platform 5.6.0 before HF27 and 5.8.0 before HF-01 does not restrict the classes for which deserialization methods can be called, which allows remote attackers to execute arbitrary code via crafted serialized data. NOTE: this vulnerability may overlap CVE-2013-2165.

NVD Source

Technical Analysis

CVE-2013-4521 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

nuxeo1 product(s)
nuxeo
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1027052
PATCHhttps://github.com/nuxeo/richfaces/commit/6cbad2a6dcb70d3e33a6ce5879b1a3ad79eb1aec
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1027052
PATCHhttps://github.com/nuxeo/richfaces/commit/6cbad2a6dcb70d3e33a6ce5879b1a3ad79eb1aec
ADVISORYhttp://doc.nuxeo.com/display/public/ADMINDOC58/Nuxeo+Security+Hotfixes
ADVISORYhttp://doc.nuxeo.com/display/public/ADMINDOC58/Nuxeo+Security+Hotfixes

All References (6)

→
http://doc.nuxeo.com/display/public/ADMINDOC58/Nuxeo+Security+HotfixesBroken Link · Vendor Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1027052Issue Tracking · Patch · Third Party Advisory
→
https://github.com/nuxeo/richfaces/commit/6cbad2a6dcb70d3e33a6ce5879b1a3ad79eb1aecPatch · Third Party Advisory
→
http://doc.nuxeo.com/display/public/ADMINDOC58/Nuxeo+Security+HotfixesBroken Link · Vendor Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1027052Issue Tracking · Patch · Third Party Advisory
→
https://github.com/nuxeo/richfaces/commit/6cbad2a6dcb70d3e33a6ce5879b1a3ad79eb1aecPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2013-4521
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-502
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 6, 2020

Related CVEs (CWE-502)

CVE-2025-34153
10.0
CVE-2025-14931
10.0
CVE-2023-45146
10.0
CVE-2024-20253
10.0
CVE-2025-48200
10.0
CVE-2024-43242
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2013-4521 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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