VulnerabilityModified

CVE-2012-4886

Stack-based buffer overflow in wpsio.dll in Kingsoft WPS Office 2012 possibly 8.1.0.3238 allows remote attackers to execute arbitrary code via a long BSTR string.

EXPLOIT ✓HIGH 10.0EPSS 15.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 15.3%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Stack-based buffer overflow in wpsio.dll in Kingsoft WPS Office 2012 possibly 8.1.0.3238 allows remote attackers to execute arbitrary code via a long BSTR string.

CVSS 2.0: 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS: 15.35% probability · 97th percentile
Public exploits: 1 in Exploit-DB · verified · first 1 May 2013
CISA KEV: Not listed
Weakness: CWE-119
Affected: kingsoft/office 2012
Source: cve@mitre.org

EPSS trend

EPSS 15.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-25140 source ↗	WPS Office - 'Wpsio.dll' Stack Buffer Overflowwindows · Zhangjiantao	dos	1 May 2013	yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.