How severe is CVE-2023-50235?

CVE-2023-50235 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50235?

CVE-2023-50235 affects Hancom Office Show. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-50235?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-50235 have an EU (EUVD) identifier?

Yes. CVE-2023-50235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55057.

When was CVE-2023-50235 published?

CVE-2023-50235 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-50235

CVE-2023-50235 is a high-severity vulnerability in Hancom Office Show with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55057
Weakness: CWE-787
Affected product: Hancom Office Show
Published: 2024-05-03
Last modified: 2026-06-17

Description

Hancom Office Show PPT File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Show. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PPT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20387.

Frequently asked questions

What is CVE-2023-50235?: Hancom Office Show PPT File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Show. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PPT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20387.
How severe is CVE-2023-50235?: CVE-2023-50235 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50235?: CVE-2023-50235 affects Hancom Office Show. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-50235?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-50235 have an EU (EUVD) identifier?: Yes. CVE-2023-50235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55057.
When was CVE-2023-50235 published?: CVE-2023-50235 was published on 2024-05-03 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1857/

Affected products (1)

cpe:2.3:a:hancom:office_show:11.0.0.6931:*:*:*:*:*:*:*

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