HOMEVULNERABILITIESCVE-2021-4311
CRITICAL

CVE-2021-4311

CWE-611Published: January 9, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability classified as problematic was found in Talend Open Studio for MDM. This vulnerability affects unknown code of the component XML Handler. The manipulation leads to xml external entity reference. The patch is identified as 31d442b9fb1d518128fd18f6e4d54e06c3d67793. It is recommended to apply a patch to fix this issue. VDB-217666 is the identifier assigned to this vulnerability.

NVD Source

Technical Analysis

CVE-2021-4311 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.

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

talend1 product(s)
open studio
Source: NVD CPE · 1 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
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Official Patches & Advisories

PATCHhttps://github.com/Talend/tmdm-server-se/commit/31d442b9fb1d518128fd18f6e4d54e06c3d67793
PATCHhttps://github.com/Talend/tmdm-server-se/pull/1420
PATCHhttps://github.com/Talend/tmdm-server-se/commit/31d442b9fb1d518128fd18f6e4d54e06c3d67793
PATCHhttps://github.com/Talend/tmdm-server-se/pull/1420
ADVISORYhttps://vuldb.com/?ctiid.217666
ADVISORYhttps://vuldb.com/?id.217666
ADVISORYhttps://vuldb.com/?ctiid.217666
ADVISORYhttps://vuldb.com/?id.217666

All References (8)

→
https://github.com/Talend/tmdm-server-se/commit/31d442b9fb1d518128fd18f6e4d54e06c3d67793Patch
→
https://github.com/Talend/tmdm-server-se/pull/1420Patch
→
https://vuldb.com/?ctiid.217666Third Party Advisory
→
https://vuldb.com/?id.217666Third Party Advisory
→
https://github.com/Talend/tmdm-server-se/commit/31d442b9fb1d518128fd18f6e4d54e06c3d67793Patch
→
https://github.com/Talend/tmdm-server-se/pull/1420Patch
→
https://vuldb.com/?ctiid.217666Third Party Advisory
→
https://vuldb.com/?id.217666Third Party Advisory

Quick Facts

CVE IDCVE-2021-4311
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-611
CISA KEVNo
Affected1 vendor(s)
PublishedJan 9, 2023

Related CVEs (CWE-611)

CVE-2018-1000820
10.0
CVE-2018-1000822
10.0
CVE-2017-7664
10.0
CVE-2018-1000124
10.0
CVE-2018-1000821
10.0
CVE-2018-1000823
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-4311 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.COM. CVE data is provided under the NVD usage policy.
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