CVE-2023-43650Public exploitNetwork attack vector

Account takeover via unrestricted password-reset code attempts

Published Sep 27, 2023 · Updated Mar 25, 2025

Weak password recovery in JumpServer 2.0.0 through 2.28.19 and 3.0.0 through 3.7.0 allows remote attackers to take over accounts. The password-reset verification endpoint accepts up to 1,000,000 guesses for a six-digit code during its one-minute lifetime because it enforces no attempt limit. The attack requires a non-MFA account with password recovery available; a successful guess permits replacement of the account password.

CVSS severity7.4
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password recovery in JumpServer 2.0.0 through 2.28.19 and 3.0.0 through 3.7.0 allows remote attackers to take over accounts. The password-reset verification endpoint accepts up to 1,000,000 guesses for a six-digit code during its one-minute lifetime because it enforces no attempt limit. The attack requires a non-MFA account with password recovery available; a successful guess permits replacement of the account password.

The record

CVE
CVE-2023-43650
Published
Sep 27, 2023
Updated
Mar 25, 2025
Vendor
JumpServer
Product
JumpServer
Classifications
CWE-640, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.0.0, < 2.28.20
  2. Affected versionversion=2.0.0 <2.28.20
  3. Affected versionversion=>= 3.0.0, < 3.7.1
  4. Affected versionversion=3.0.0 <3.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JumpServer · JumpServerversion=>= 2.0.0, < 2.28.20; version=2.0.0 <2.28.20; version=>= 3.0.0, < 3.7.1; version=3.0.0 <3.7.1

Published CVSS scores

8.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
7.4NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-640Weak Password Recovery Mechanism for Forgotten Password
T1110Brute Force

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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