CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.0 | $0-$5k | 0.00 |
A vulnerability was found in Siemens APOGEE MBC, APOGEE MEC, APOGEE PXC Compact, APOGEE PXC Modular, Capital VSTAR, Nucleus NET, Nucleus ReadyStart, Nucleus Source Code, TALON TC Compact and TALON TC Modular. It has been classified as critical. This affects an unknown code of the component TCP SACK Packet Handler. The manipulation with an unknown input leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was released 11/09/2021 as ssa-044112. It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2021-31889 since 04/29/2021. The technical details are unknown and an exploit is not publicly available.
Upgrading eliminates this vulnerability.
Entries connected to this vulnerability are available at VDB-186342, VDB-186343, VDB-186344 and VDB-186345.
Product
Vendor
Name
- APOGEE MBC
- APOGEE MEC
- APOGEE PXC Compact
- APOGEE PXC Modular
- Capital VSTAR
- Nucleus NET
- Nucleus ReadyStart
- Nucleus Source Code
- TALON TC Compact
- TALON TC Modular
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Integer underflowCWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
04/29/2021 🔍11/09/2021 🔍
11/09/2021 🔍
11/11/2021 🔍
Sources
Vendor: siemens.comAdvisory: ssa-044112
Status: Confirmed
CVE: CVE-2021-31889 (🔍)
See also: 🔍
Entry
Created: 11/09/2021 14:51Updated: 11/11/2021 17:11
Changes: 11/09/2021 14:51 (38), 11/11/2021 17:11 (1)
Complete: 🔍
Cache ID: 18:C84:103
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