Denial of Service Vulnerability in GCC Affecting libstdc++
CVE-2026-115456

3.7LOW

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
30 October 2026

What is CVE-2026-115456?

A flaw exists in GCC's libstdc++ library whereby an attacker could induce a Denial of Service by providing a non-null-terminated string to the std::from_chars() function. This situation can trigger an out-of-bounds read, leading to potential data corruption or application crashes. Ensuring proper input validation is crucial to mitigating this vulnerability.

References

https://access.redhat.com/security/cve/CVE-2026-115456
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2563044
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.