CVE-2026-115455

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-10-30 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: High

Description

A flaw was found in GCC libstdc++. When an application extracts data into a bitset from a wide-character stream, internal stack memory allocation fails to properly account for character size and alignment. An attacker capable of supplying crafted input to an affected application could trigger a stack-based buffer overflow leading denial of service (DoS).

Weakness Classification (1)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.30%
Raw Score 0.003030
Percentile 23.1%
Date 2026-11-02

EPSS Trend

2026-11-02
0.00303
2026-11-01
0.00303
2026-10-31
0.00303
2026-10-30
0.00303

Intelligence Sources

mitre ref →
nvd ref →