CVE-2021-23853
Improper Input Validation of HTTP Headers
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Improper Input Validation of HTTP Headers
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
- Record
CVE-2021-23853- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2021-10779
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
- Record
EUVD-2021-10779- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9f38-8856-g696 No score
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject...
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
- Record
GHSA-9f38-8856-g696- Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
- Record
CVE-2021-23853- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-23853 is a high vulnerability (CVSS 8.3) in Bosch Cpp Firmware, published June 9, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. No source names a fixed version.