CVE-2021-40399 json
An exploitable use-after-free vulnerability exists in WPS Spreadsheets ( ET ) as part of WPS Office, version 11.2.0.10351.
published 2022-05-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27576
- cvss
- 8.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
An exploitable use-after-free vulnerability exists in WPS Spreadsheets ( ET ) as part of WPS Office, version 11.2.0.10351. A specially-crafted XLS file can cause a use-after-free condition, resulting in remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- WPS WPS Office
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
talosintelligence.com
/vulnerability_reports/TALOS-2021-1412
third-party-advisory
-
security.wps.cn
/notices/28
third-party-advisory
Sources
- CVE List CVE-2021-40399
- NVD CVE-2021-40399
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