CVE-2021-20294

HIGH
7.8
CVSS Score
Published: April 29, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:33 AM UTC
1 product affected across 1 vendorBinutils

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Severity
HIGH7.8
Exploit prediction
EPSS 3%

Description

A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.35 ≤ v < 2.35.22.35.2
Affected range stops below 2.35.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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