Oracle Communications Cloud Native Core Network Slice Selection Function NSSF input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Oracle Communications Cloud Native Core Network Slice Selection Function 1.8.0 and classified as very critical. Affected by this issue is some unknown functionality of the component NSSF. Performing a manipulation results in an unknown weakness. This vulnerability is identified as CVE-2021-29921. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Oracle Communications Cloud Native Core Network Slice Selection Function 1.8.0 (Cloud Software). It has been classified as very critical. This affects an unknown part of the component NSSF. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 04/19/2022 as Oracle Critical Patch Update Advisory - April 2022. The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2021-29921. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/04/2025).

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 211991 (Debian dla-3980 : idle-python3.9 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211991). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Nessus ID: 211991
Nessus Name: Debian dla-3980 : idle-python3.9 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

04/01/2021 🔍
04/19/2022 +383 days 🔍
04/19/2022 +0 days 🔍
04/20/2022 +1 days 🔍
11/04/2025 +1294 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - April 2022
Status: Confirmed

CVE: CVE-2021-29921 (🔍)
GCVE (CVE): GCVE-0-2021-29921
GCVE (VulDB): GCVE-100-197781

Entryinfo

Created: 04/20/2022 07:59
Updated: 11/04/2025 04:09
Changes: 04/20/2022 07:59 (39), 04/23/2022 07:22 (3), 04/23/2022 07:28 (19), 12/02/2024 17:07 (16), 11/04/2025 04:09 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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