How severe is CVE-2023-48257?

CVE-2023-48257 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-48257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48257?

CVE-2023-48257 affects Bosch Nexo-os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48257?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-48257 have an EU (EUVD) identifier?

Yes. CVE-2023-48257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-52326.

When was CVE-2023-48257 published?

CVE-2023-48257 was published on 2024-01-10 and last updated on 2026-06-17.

CVE-2023-48257

CVE-2023-48257 is a high-severity vulnerability in Bosch Nexo-os with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-52326
Weakness: CWE-287
Affected product: Bosch Nexo-os
Published: 2024-01-10
Last modified: 2026-06-17

Description

The vulnerability allows a remote attacker to access sensitive data inside exported packages or obtain up to Remote Code Execution (RCE) with root privileges on the device. The vulnerability can be exploited directly by authenticated users, via crafted HTTP requests, or indirectly by unauthenticated users, by accessing already-exported backup packages, or crafting an import package and inducing an authenticated victim into sending the HTTP upload request.

Frequently asked questions

What is CVE-2023-48257?: The vulnerability allows a remote attacker to access sensitive data inside exported packages or obtain up to Remote Code Execution (RCE) with root privileges on the device. The vulnerability can be exploited directly by authenticated users, via crafted HTTP requests, or indirectly by unauthenticated users, by accessing already-exported backup packages, or crafting an import package and inducing an authenticated victim into sending the HTTP upload request.
How severe is CVE-2023-48257?: CVE-2023-48257 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-48257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48257?: CVE-2023-48257 affects Bosch Nexo-os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-48257 have an EU (EUVD) identifier?: Yes. CVE-2023-48257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-52326.
When was CVE-2023-48257 published?: CVE-2023-48257 was published on 2024-01-10 and last updated on 2026-06-17.

References

https://psirt.bosch.com/security-advisories/BOSCH-SA-711465.html

Affected products (1)

cpe:2.3:o:bosch:nexo-os:*:*:*:*:*:*:*:*

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