Dashboard / CVE-2021-3826

CVE-2021-3826

MEDIUM
MEDIUM Priority: 0.10 BB Relevance: 63/100
Published: 2022-09-01 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

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

Description

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

Weakness Classification (2)

Affected Software (5)

VendorProductVersion
fedoraproject fedora 35
fedoraproject fedora 36
fedoraproject fedora 37
gnu gcc 11.2
n/a gcc gcc 11.2.0

References & Advisories (8)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

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

EPSS — Exploitation Probability

1.50%
Raw Score 0.015040
Percentile 74.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.01504
2026-11-12
0.01504
2026-11-10
0.01504
2026-11-09
0.01504
2026-11-08
0.01504
2026-11-07
0.01504
2026-11-06
0.01504
2026-11-05
0.01504
2026-11-04
0.01504
2026-11-03
0.01504
2026-11-02
0.01504

Intelligence Sources

mitre ref →
nvd ref →

External Links