Vulnerability Details : CVE-2021-4070
Potential exploit
Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.
Products affected by CVE-2021-4070
- cpe:2.3:a:v2fly:v2ray-core:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4070
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4070
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
2.5
|
3.4
|
huntr.dev | |
|
9.1
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2021-4070
-
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.Assigned by:
- nvd@nist.gov (Primary)
- security@huntr.dev (Secondary)
References for CVE-2021-4070
-
https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877
Off-by-one Error vulnerability found in v2ray-coreExploit;Patch;Third Party Advisory
-
https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c
Fix DoS attack vulnerability in CommandSwitchAccountFactory · v2fly/v2ray-core@c1af2bf · GitHubPatch;Third Party Advisory
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