What is the CVSS score of CVE-2023-26234?

CVE-2023-26234 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2023-26234?

Yes, a public proof-of-concept exploit is available for CVE-2023-26234. Prioritise patching immediately. EPSS: 0.8%.

Jd Gui CVE-2023-26234

CRITICAL

Deserialization of Untrusted Data (CWE-502)

2023-02-21 cve@mitre.org

Deserialization Jd Gui

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 21, 2023 - 00:15 nvd

CRITICAL 9.8

DescriptionNVD

JD-GUI 1.6.6 allows deserialization via UIMainWindowPreferencesProvider.singleInstance.

AnalysisAI

JD-GUI 1.6.6 allows deserialization via UIMainWindowPreferencesProvider.singleInstance. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. JD-GUI 1.6.6 allows deserialization via UIMainWindowPreferencesProvider.singleInstance. Affected products include: Jd-Gui Project Jd-Gui.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.