Use After Free in Hancom Office
CVE-2023-51598
Hancom Office Word DOC File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hancom Office Word. 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 DOC files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20384.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Hancom Office — versions HancomOffice Word 11.0.0.6914
- Hancom Office Word — versions 11.0.0.6914
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-23-1855/ (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-51598?
- CVE-2023-51598 is a high-severity vulnerability in Hancom Office, classified under Use After Free. CVSS score: 8.8/10. Published 2024-05-03.
- How severe is CVE-2023-51598?
- High severity. CVSS v3 base score is 8.8 out of 10.