CVE detail
CVE-2026-71225
A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs (over 64 KiB) in stateful modes such as Counter (CTR) or Cipher Block Chaining (CBC), the library improperly reuses the Initialization Vector (IV) for each internal data chunk. A remote attacker could potentially exploit this by making an application that uses libkcapi process specially crafted large inputs. This can lead to a significant weakening of data confidentiality, as the repeated IV use can expose relationships in encrypted plaintext, and may also affect data integrity by causing incorrect cryptographic processing.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 13.9 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 3
- within the 30d window
- Peak daily
- 2
- highest bucket
Evidence
Source links by recency
3 source links · newest first
Information published.
vendormsrc.microsoft.comAug 9, 2026, 8:03 AM- https://bugzilla.redhat.com/show_bug.cgi?id=2462011bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comAug 5, 2026, 1:24 PM - https://access.redhat.com/security/cve/CVE-2026-71225access.redhat.com
No excerpt available.
Exploitaccess.redhat.comAug 5, 2026, 1:24 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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