How severe is CVE-2021-23849?

CVE-2021-23849 has a CVSS 3.x base score of 7.5, 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-2021-23849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23849?

CVE-2021-23849 primarily affects Bosch Cpp4 Firmware. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-23849?

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-2021-23849 published?

CVE-2021-23849 was published on 2021-08-05 and last updated on 2026-06-17.

CVE-2021-23849

CVE-2021-23849 is a high-severity vulnerability in Bosch Cpp4 Firmware with a CVSS 3.x base score of 7.5. 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-352.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.8
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Bosch Cpp4 Firmware
Published: 2021-08-05
Last modified: 2026-06-17

Description

A vulnerability in the web-based interface allows an unauthenticated remote attacker to trigger actions on an affected system on behalf of another user (CSRF - Cross Site Request Forgery). This requires the victim to be tricked into clicking a malicious link or opening a malicious website while being logged in into the camera.

Frequently asked questions

What is CVE-2021-23849?: A vulnerability in the web-based interface allows an unauthenticated remote attacker to trigger actions on an affected system on behalf of another user (CSRF - Cross Site Request Forgery). This requires the victim to be tricked into clicking a malicious link or opening a malicious website while being logged in into the camera.
How severe is CVE-2021-23849?: CVE-2021-23849 has a CVSS 3.x base score of 7.5, 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-2021-23849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23849?: CVE-2021-23849 primarily affects Bosch Cpp4 Firmware. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-23849?: 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-2021-23849 published?: CVE-2021-23849 was published on 2021-08-05 and last updated on 2026-06-17.

References

https://psirt.bosch.com/security-advisories/bosch-sa-033305-bt.html

Affected products (21)

cpe:2.3:o:bosch:cpp4_firmware:7.10:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp6_firmware:7.60:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp6_firmware:7.61:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp6_firmware:7.70:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp6_firmware:7.80:*:*:*:*:*:*:*
cpe:2.3:o:bosch:aviotec_firmware:7.61:*:*:*:*:*:*:*
cpe:2.3:o:bosch:aviotec_firmware:7.72:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:7.60:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:7.61:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:7.70:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:7.72:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7_firmware:7.80:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.60:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.61:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.62:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.70:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.72:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.73:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp7.3_firmware:7.80:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp13_firmware:7.75:*:*:*:*:*:*:*
cpe:2.3:o:bosch:cpp14_firmware:8.00:*:*:*:*:*:*:*

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