HOMEVULNERABILITIESCVE-2023-6299
MEDIUM

CVE-2023-6299

CWE-401Published: November 26, 2023· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

A vulnerability, which was classified as problematic, has been found in Apryse iText 8.0.1. This issue affects some unknown processing of the file PdfDocument.java of the component Reference Table Handler. The manipulation leads to memory leak. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 8.0.2 is able to address this issue. It is recommended to upgrade the affected component. The identifier VDB-246125 was assigned to this vulnerability. NOTE: The vendor was contacted early about this vulnerability. The fix was introduced in the iText 8.0.2 release on October 25th 2023, prior to the disclosure.

NVD Source

Technical Analysis

CVE-2023-6299 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

itextpdf1 product(s)
itext
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

ADVISORYhttps://vuldb.com/?ctiid.246125
ADVISORYhttps://vuldb.com/?id.246125
ADVISORYhttps://vuldb.com/?ctiid.246125
ADVISORYhttps://vuldb.com/?id.246125

All References (8)

→
https://drive.google.com/file/d/1_jeD7SvuliKc_02pPTPbfSnqAErzmFny/view?usp=sharingBroken Link
→
https://kb.itextpdf.com/home/it7kb/releases/release-itext-core-8-0-2#ReleaseiTextCore8.0.2-BugfixesandmiscellaneousRelease Notes
→
https://vuldb.com/?ctiid.246125Third Party Advisory
→
https://vuldb.com/?id.246125Third Party Advisory
→
https://drive.google.com/file/d/1_jeD7SvuliKc_02pPTPbfSnqAErzmFny/view?usp=sharingBroken Link
→
https://kb.itextpdf.com/home/it7kb/releases/release-itext-core-8-0-2#ReleaseiTextCore8.0.2-BugfixesandmiscellaneousRelease Notes
→
https://vuldb.com/?ctiid.246125Third Party Advisory
→
https://vuldb.com/?id.246125Third Party Advisory

Quick Facts

CVE IDCVE-2023-6299
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-401
CISA KEVNo
Affected1 vendor(s)
PublishedNov 26, 2023

Related CVEs (CWE-401)

CVE-2021-40633
8.8
CVE-2019-17340
8.8
CVE-2019-6128
8.8
CVE-2023-33718
8.8
CVE-2026-0646
8.7
CVE-2025-14027
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-6299 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.
← All Vulnerabilities·Search for CVE-2023-6299·NVD