CVE-2026-97399 (GCVE-0-2026-97399)

Vulnerability from cvelistv5 – Published: 2026-09-28 15:21 – Updated: 2026-09-28 17:07
VLAI
Title
One-byte overread in strncasecmp on Power8
Summary
The strncasecmp function in the GNU C Library 2.24 and later optimized for the Power8 architecture may read one byte beyond the input size limit, which may crash a program when that byte is not readable. This condition may happen when the input strings to the strncasecmp function are attacker controlled in an application and they match all the way up to the edge of their page and the neighbouring page is either not mapped or is not readable.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:33 UTC
CWE
Assigner
glibc CNA under the redhat root
CNA scorecard B 80/100 over 13 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
The GNU C Library glibc Affected: 2.24 , < 2.45 (custom)
guessed Create a notification for this product.
Credits
AISLE in partnership with Red Hat
Show details on NVD website
To clipboard 

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