Is CVE-2023-43650 in the CISA KEV catalog?

No. CVE-2023-43650 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-43650?

CVE-2023-43650 has a CVSS v3 base score of 8.2 (HIGH).

What is the EPSS score for CVE-2023-43650?

CVE-2023-43650 has an EPSS score of 0.51% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-43650?

Upgrade jumpserver to 3.7.1 or later.

CVE & CISA-KEV Catalog

CVE-2023-43650

HIGH

8.2

CVSS v3

NVD

Description

JumpServer is an open source bastion host. The verification code for resetting user's password is vulnerable to brute-force attacks due to the absence of rate limiting. JumpServer provides a feature allowing users to reset forgotten passwords. Affected users are sent a 6-digit verification code, ranging from 000000 to 999999, to facilitate the password reset. Although the code is only available in 1 minute, this window potentially allows for up to 1,000,000 validation attempts. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-640

How to fix

Remediation Available

jumpserverNVD

Affected:>= 3.0.0, < 3.7.1Fixed in:3.7.1CVE-2023-43650derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploit Intelligence

0.51%probability of exploitation in 30 days

40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Exploit2

Related Vulnerabilities

Other CWE-640 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-18818	Critical	9.8	98%	-	-
CVE-2023-7028	Critical	10.0	95%	KEV	Fix
CVE-2017-7615	High	8.8	91%	-	-
CVE-2024-2862	Critical	9.1	51%	-	-
CVE-2019-19844	Critical	9.8	35%	-	Fix
CVE-2025-6216	Critical	9.8	29%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-21.