Stack-based buffer overflow in Kingsoft Writer 2012 8.1.0.3030, as used in Kingsoft Office 2013 before 9.1.0.4256, allows remote attackers to execute arbitrary code via a long font name in a WPS file.
Conclusion & alert: CVE-2013-3934 is rated High Exploit Risk (81.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 38.21%, 97th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 29922 | exploit_db | edb | 2013-11-30 | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-03 | 43.56% | 38.21% | -5.36% |
| 2 | 2025-04-26 | 45.17% | 43.56% | -1.61% |
| 3 | 2025-03-30 | — | 45.17% | — |
Full EPSS history (19 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| kingsoft | office_2012 | 8.1.0.3385 | cpe:2.3:a:kingsoft:office_2012:8.1.0.3385:*:*:*:*:*:*:* |
| kingsoft | writer_2012 | 8.1.0.3030 | cpe:2.3:a:kingsoft:writer_2012:8.1.0.3030:*:*:*:*:*:*:* |