CVE-2026-18374

Published: Ago 27, 2026 Last Modified: Ago 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,9
Source: 3ff69d7a-14f2-4f67-a097-88dee7810d18
Attack Vector: local
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low

Description

AI Translation Available

Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled.

This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0015
Percentile
0,0th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
https://sourceware.org/bugzilla/show_bug.cgi?id=34574
https://sourceware.org/bugzilla/show_bug.cgi?id=34574
https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advi…
https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026…
http://www.openwall.com/lists/oss-security/2026/08/27/6
http://www.openwall.com/lists/oss-security/2026/08/27/6