Description
A flaw was found in libstdc++. When a byte-by-byte write operation fails during file stream processing, the library may still append data into the internal memory buffer. An attacker capable of inducing repeated write failures in an affected service can trigger a buffer overflow, potentially resulting in a Denial of Service (DoS) or memory corruption.
Published: 2026-11-10
Score: 4.2 Medium
EPSS: n/a
KEV: No
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Remediation

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History

Tue, 10 Nov 2026 11:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in libstdc++. When a byte-by-byte write operation fails during file stream processing, the library may still append data into the internal memory buffer. An attacker capable of inducing repeated write failures in an affected service can trigger a buffer overflow, potentially resulting in a Denial of Service (DoS) or memory corruption.
Title Libstdc++: overflow leaves streambuf in inconsistent state on i/o error.
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat rhel Els
Weaknesses CWE-787
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift:5
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L'}


Subscriptions

Redhat Enterprise Linux Hummingbird Openshift Rhel Els
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-10T11:23:22.074Z

Reserved: 2026-11-10T10:33:26.980Z

Link: CVE-2026-125709

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T12:17:18.407

Modified: 2026-11-10T12:17:18.540

Link: CVE-2026-125709

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses