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Security Bulletin: This Power System update is being released to address CVE 2022-22309

Security Bulletin


POWER8/POWER9: The POWER systems FSP is vulnerable to unauthenticated logins through the physical serial port/TTY interface. This vulnerability can be more critical if the serial port is connected to a serial-over-lan device. In response to this security issue, a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE-2022-22309

Vulnerability Details

CVEID:   CVE-2022-22309
DESCRIPTION:   The POWER systems FSP is vulnerable to unauthenticated logins through the serial port/TTY interface. This vulnerability can be more critical if the serial port is connected to a serial-over-lan device.
CVSS Base score: 6.8
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Firmware release FW860, FW940 and FW950 are affected.


Customers with the products below, install FW860.B0

1) IBM Power System S812(8284-21A)

2) IBM Power System S822(8284-22A)

3) IBM Power System S814(8286-41A)

4) IBM Power System S824(8286-42A)

5) IBM Power System S812L(8247-21L)

6) IBM Power System S822L(8247-22L)

7) IBM Power System S824L(8247-42L)

8) IBM Power System E850(8408-E8E)

9) IBM Power System E850C(8408-44E)

10) IBM Power System E870(9119-MME)

11) IBM Power System E870C(9080-MME)

12) IBM Power System E880(9119-MHE)

13) IBM Power System E880C(9080-MHE)

14) IBM Power System S812L(5148-21L)

15) IBM Power System S822L(5148-22L)

Customers with the products below, install FW940.60 or FW950.40 or above.

1) IBM Power System S922 (9009-22A)

2) IBM Power System H922 (9223-22H)

3) IBM Power System S914 (9009-41A)

4) IBM Power System S924 (9009-42A)

5) IBM Power System H924 (9223-42H)

6) IBM Power System L922 (9008-22L)

7) IBM Power System E950 (9040-MR9)

Customers with the products below, install  FW950.40 or above.

1) IBM Power System S914 (9009-41G)

2) IBM Power System S922 (9009-22G)

3) IBM Power System S924(9009-42G)

4) IBM ESS 5000 Server (5105-22E)

Workarounds and Mitigations


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Change History

17 May 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location


[{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"TI0005G","label":"Power System S922 Server (9009-22A)"},"ARM Category":[{"code":"a8m0z000000bowsAAA","label":"FSP"},{"code":"a8m0z000000bpKLAAY","label":"Firmware"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"},{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"HWQQQP_301","label":"Power System S812 Server (8284-21A)"},"ARM Category":[{"code":"a8m0z000000bowsAAA","label":"FSP"},{"code":"a8m0z000000bpKLAAY","label":"Firmware"}],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]

Document Information

Modified date:
23 May 2022