CVE-2021-29847 json
BMC firmware (IBM Power System S821LC Server (8001-12C) OP825.50) configuration changed to allow an authenticated user to open an insecure…
published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16321
- cvss
- 5.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
BMC firmware (IBM Power System S821LC Server (8001-12C) OP825.50) configuration changed to allow an authenticated user to open an insecure communication channel which could allow an attacker to obtain sensitive information using man in the middle techniques. IBM X-Force ID: 205267.
Patch / fix
- ibm power_hardware_management_console_(7063-cr1)_firmware op825.51
- ibm power_system_cs822lc_(8005-22n)_firmware op825.51
- ibm power_system_cs821lc_(8005-12n)_firmware op825.51
- ibm power_system_s822lc_(8001-22c)_firmware op825.51
- ibm power_system_s821lc_(8001-12c)_firmware op825.51
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.3 | CVSS:3.0/PR:N/I:N/S:U/UI:R/C:H/AC:H/A:N/AV:N/E:U/RC:C/RL:O |
| NVD | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- IBM Power System S821LC Server (8001-12C)
References
-
ibm.com
/support/pages/node/6520420
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/205267
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2021-29847
- NVD CVE-2021-29847
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