CVE-2015-6585
CVE-2015-6585 is a high-severity vulnerability in Hancom Hangul Word Processor 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-119.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (83rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Hancom Hangul Word Processor
- Published:
- Last modified:
Description
hwpapp.dll in Hangul Word Processor allows remote attackers to execute arbitrary code via a crafted heap spray, and by leveraging a "type confusion" via an HWPX file containing a crafted para text tag.
Frequently asked questions
- What is CVE-2015-6585?
- hwpapp.dll in Hangul Word Processor allows remote attackers to execute arbitrary code via a crafted heap spray, and by leveraging a "type confusion" via an HWPX file containing a crafted para text tag.
- How severe is CVE-2015-6585?
- CVE-2015-6585 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-2015-6585 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-6585?
- CVE-2015-6585 affects Hancom Hangul Word Processor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2015-6585?
- 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.
- When was CVE-2015-6585 published?
- CVE-2015-6585 was published on 2017-07-25 and last updated on 2026-06-17.
References
- http://www.hancom.com/cs_center/csDownload.do
- http://www.securityfocus.com/bid/76694
- https://www.fireeye.com/blog/threat-research/2015/09/zero-day_hwp_exploit.html
- https://www.fireeye.com/content/dam/fireeye-www/global/en/blog/threat-research/FireEye_HWP_ZeroDay.pdf
Affected products (1)
- cpe:2.3:a:hancom:hangul_word_processor:2014:*:*:*:*:*:*:*
More vulnerabilities in Hancom Hangul Word Processor
- CVE-2017-2819 — High (CVSS 8.8): An exploitable heap-based buffer overflow exists in the Hangul Word Processor component (version 9.6.1.4350) of Hancom…
All CVEs affecting Hancom Hangul Word Processor →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
- CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.