VulnerabilityPublished 20 Jun 2024Updated 11 May 2026

CVE-2024-4032: Python · Incorrect IPv4 and IPv6 private ranges

Affects pythonSource GCVE Database

Authoritative record:CVE-2024-4032· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 3.12.4 : patch python soon.

Data as of 27 Oct 2026, 00:27 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 3.12.4, 3.11.10, 3.10.15 +2

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
Bitnamipython`pkg:bitnami/python`Other threats	Affected <3.8.20 >=3.9.0 <3.9.20 >=3.10.0 <3.10.15 >=3.11.0 <3.11.10 >=3.12.0 <3.12.4	Fixed in 3.8.20 3.9.20 3.10.15 3.11.10 3.12.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official fixes by upgrading to Python versions 3.8.20, 3.9.20, 3.10.15, 3.11.10, or 3.12.4 or later, which contain the corrected ipaddress module data. Since patches are available, updating to these versions is the recommended remediation.

Description

The Python ipaddress module had incorrect data regarding which IPv4 and IPv6 addresses are considered private or globally reachable. This caused the is_private and is_global properties to return inaccurate results for certain addresses. The issue was corrected in Python versions 3.8.20, 3.9.20, 3.10.15, 3.11.10, and 3.12.4 by updating the module with the latest IANA Special-Purpose Address Registries data.

Impact

Applications using the affected Python versions may incorrectly determine whether an IP address is private or globally reachable, potentially affecting network access controls, logging, or security policies that rely on accurate IP address classification. This misclassification could lead to improper trust decisions or exposure of internal network details. However, no known exploits in the wild have been reported.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Oct 2026, 00:27 UTC

Technical details

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