Siemens Nucleus IPv6 Packet infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens Nucleus, Nucleus NET, Nucleus ReadyStart, Nucleus Source Code and VSTAR. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component IPv6 Packet Handler. The manipulation leads to infinite loop. This vulnerability is traded as CVE-2021-25664. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens Nucleus, Nucleus NET, Nucleus ReadyStart, Nucleus Source Code and VSTAR. It has been rated as problematic. This issue affects an unknown function of the component IPv6 Packet Handler. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability.

The weakness was shared 04/23/2021 as ssa-248289. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2021-25664. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2021 🔍
04/23/2021 +91 days 🔍
04/23/2021 +0 days 🔍
03/11/2025 +1418 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-248289
Status: Confirmed

CVE: CVE-2021-25664 (🔍)
GCVE (CVE): GCVE-0-2021-25664
GCVE (VulDB): GCVE-100-173789

Entryinfo

Created: 04/23/2021 08:40
Updated: 03/11/2025 13:01
Changes: 04/23/2021 08:40 (37), 04/27/2021 14:39 (5), 03/11/2025 13:01 (55)
Complete: 🔍
Cache ID: 216::103

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