How severe is CVE-2021-23848?

CVE-2021-23848 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-23848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23848?

CVE-2021-23848 primarily affects Bosch Cpp4 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-23848?

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.

When was CVE-2021-23848 published?

CVE-2021-23848 was published on 2021-06-09 and last updated on 2026-06-17.

CVE-2021-23848

CVE-2021-23848 is a high-severity vulnerability in Bosch Cpp4 Firmware with a CVSS 3.x base score of 8.3. 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-79.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Bosch Cpp4 Firmware
Published: 2021-06-09
Last modified: 2026-06-17

Description

An error in the URL handler Bosch IP cameras may lead to a reflected cross site scripting (XSS) in the web-based interface. An attacker with knowledge of the camera address can send a crafted link to a user, which will execute javascript code in the context of the user.

Frequently asked questions

What is CVE-2021-23848?: An error in the URL handler Bosch IP cameras may lead to a reflected cross site scripting (XSS) in the web-based interface. An attacker with knowledge of the camera address can send a crafted link to a user, which will execute javascript code in the context of the user.
How severe is CVE-2021-23848?: CVE-2021-23848 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-23848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23848?: CVE-2021-23848 primarily affects Bosch Cpp4 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-23848?: 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.
When was CVE-2021-23848 published?: CVE-2021-23848 was published on 2021-06-09 and last updated on 2026-06-17.

References

https://psirt.bosch.com/security-advisories/bosch-sa-478243-bt.html

Affected products (5)

cpe:2.3:o:bosch:cpp4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp13_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Bosch Cpp4 Firmware

CVE-2021-23853 — High (CVSS 8.3): In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through…
CVE-2021-23849 — High (CVSS 7.5): A vulnerability in the web-based interface allows an unauthenticated remote attacker to trigger actions on an affected…
CVE-2022-41677 — Medium (CVSS 5.3): An information disclosure vulnerability was discovered in Bosch IP camera devices allowing an unauthenticated attacker…
CVE-2021-23852 — Medium (CVSS 4.9): An authenticated attacker with administrator rights Bosch IP cameras can call an URL with an invalid parameter that…

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