Vulnerability · Published Sep 17, 2021 · Assigned by jpcert
CVE-2021-20791
Critical 9.3
In plain English
A critical-severity security flaw in RevoWorks Browser from J’s Communication Co., Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS NVD)9.3Critical
Exploit odds (30 days)0.8%top 41.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| J’s Communication Co., Ltd. | RevoWorks Browser | 2.1.230 and earlier |
References
- https://jscom.jp/news-20210910_2/ x_refsource_MISC
- https://jvn.jp/en/jp/JVN81658818/index.html x_refsource_MISC