HOMEVULNERABILITIESCVE-2023-51656
CRITICAL

CVE-2023-51656

CWE-502Published: December 21, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Deserialization of Untrusted Data vulnerability in Apache IoTDB.This issue affects Apache IoTDB: from 0.13.0 through 0.13.4.

Users are recommended to upgrade to version 1.2.2, which fixes the issue.

NVD Source

Risk Analysis

Apache IoTDB versions 0.13.0 through 0.13.4 are vulnerable to deserialization of untrusted data. This critical flaw allows remote attackers to execute arbitrary code, resulting in a CVSS score of 9.8.

No public exploit is known, and the vulnerability is not in the KEV database. It is remotely exploitable with low complexity.

Recommended Action

Upgrade to Apache IoTDB version 1.2.2 or later to address this vulnerability. Avoid deserializing data from untrusted sources.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-51656 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

Apache1 product(s)
iotdb
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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2023/12/21/5
ADVISORYhttps://lists.apache.org/thread/zy3klwpv11vl5n65josbfo2fyzxg3dxc
ADVISORYhttp://www.openwall.com/lists/oss-security/2023/12/21/5
ADVISORYhttps://lists.apache.org/thread/zy3klwpv11vl5n65josbfo2fyzxg3dxc

All References (4)

→
http://www.openwall.com/lists/oss-security/2023/12/21/5Mailing List · Third Party Advisory
→
https://lists.apache.org/thread/zy3klwpv11vl5n65josbfo2fyzxg3dxcIssue Tracking · Mailing List · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2023/12/21/5Mailing List · Third Party Advisory
→
https://lists.apache.org/thread/zy3klwpv11vl5n65josbfo2fyzxg3dxcIssue Tracking · Mailing List · Vendor Advisory

Quick Facts

CVE IDCVE-2023-51656
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-502
CISA KEVNo
Affected1 vendor(s)
PublishedDec 21, 2023

Related CVEs (CWE-502)

CVE-2025-58384
10.0
CVE-2025-10363
10.0
CVE-2024-44102
10.0
CVE-2021-37181
10.0
CVE-2026-25632
10.0
CVE-2025-42944
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-51656 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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