Oracle Fujitsu M10-1 XCP Firmware out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$25k-$100k0.00

Summaryinfo

A vulnerability identified as very critical has been detected in Oracle Fujitsu M10-1, Fujitsu M10-4, Fujitsu M10-4S, Fujitsu M12-1, Fujitsu M12-2 and Fujitsu M12-2S Prior to XCP2430/prior to XCP3130/prior to XCP4040. This vulnerability affects unknown code of the component XCP Firmware. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2021-43527. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Oracle Fujitsu M10-1, Fujitsu M10-4, Fujitsu M10-4S, Fujitsu M12-1, Fujitsu M12-2 and Fujitsu M12-2S Prior to XCP2430/prior to XCP3130/prior to XCP4040. This issue affects some unknown functionality of the component XCP Firmware. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability.

The weakness was shared 01/16/2024 as Oracle Critical Patch Update Advisory - January 2024. The advisory is shared at oracle.com. The identification of this vulnerability is CVE-2021-43527. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 05/16/2025).

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 236713 (Alibaba Cloud Linux 3 : 0081: nss (ALINUX3-SA-2021:0081)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (236713). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: 236713
Nessus Name: Alibaba Cloud Linux 3 : 0081: nss (ALINUX3-SA-2021:0081)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

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

Timelineinfo

11/08/2021 🔍
01/16/2024 +799 days 🔍
01/16/2024 +0 days 🔍
01/17/2024 +1 days 🔍
05/16/2025 +485 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2024
Status: Confirmed

CVE: CVE-2021-43527 (🔍)
GCVE (CVE): GCVE-0-2021-43527
GCVE (VulDB): GCVE-100-251309

Entryinfo

Created: 01/17/2024 09:11
Updated: 05/16/2025 19:58
Changes: 01/17/2024 09:11 (37), 02/10/2024 10:04 (2), 02/10/2024 10:09 (18), 05/16/2025 19:58 (17)
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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