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CVE-2021-30357

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the...

5.3 MediumPublic exploit

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the configuration file supplied, which allows partially disclosing files to which the user did not have access.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

22.8%Up 22.4 points since Jun 9, 2021
90%50%10%1%

What each source reports

NVD Score used 5.3

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the configuration file supplied, which allows partially disclosing files to which the user did not have access.

Record
CVE-2021-30357
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-209
Updated
2026-11-02
CVE List No score

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the configuration file supplied, which allows partially disclosing files to which the user did not have access.

Record
CVE-2021-30357
Weakness
CWE-209
Updated
2026-11-02
EUVDEUVD-2021-17288 No score

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the configuration file supplied, which allows partially disclosing files to which the user did not have access.

Record
EUVD-2021-17288
Updated
2026-11-03
GitHub AdvisoriesGHSA-rh4f-mp79-c7jh No score

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the...

SSL Network Extender Client for Linux before build 800008302 reveals part of the contents of the configuration file supplied, which allows partially disclosing files to which the user did not have access.

Record
GHSA-rh4f-mp79-c7jh
Weakness
CWE-209
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubjoaovarelas/CVE-2021-30357_CheckPoint_SNX_VPN_PoC2023-06-18

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-30357 is a medium vulnerability (CVSS 5.3) in Checkpoint Ssl Network Extender, published June 8, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 22.8%, the 97th percentile. No source names a fixed version.

References

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