CVE-2024-55897: IBM PowerHA SystemMirror for i 7.4 and 7.5 does not set the secure attribute on authorization tokens or sess

Routine

MEDIUM 4.3MITIGATE

CVE-2024-55897 is a medium-severity flaw (CVSS 4.3) affecting powerha system mirror. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM PowerHA SystemMirror for i 7.4 and 7.5 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-614
Published	2025-01-03
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-01-03 23:15 UTCPublished CVE record published
2026-06-17 08:11 UTCUpdated Record last modified

ibm powerha system mirror MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy powerha-system-mirror || rpm -q powerha-system-mirror || powerha-system-mirror --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-55897?

powerha system mirror: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-55897 being exploited?

CVE-2024-55897 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-55897 affect?

CVE-2024-55897 affects powerha system mirror. Severity is medium (CVSS 4.3). IBM PowerHA SystemMirror for i 7.4 and 7.5 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site

How urgent is CVE-2024-55897?

Priority 17/100. No elevated risk signals yet.

References

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