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NVD / CVE Program· CNA redhat

CVE-2026-6846: Binutils: binutils: arbitrary code execution via malformed xcoff object file processing

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: sourceware.org/git/binutils-gdb.git binutils 2.47; azl3 binutils 2.41-11 on Azure Linux 3.0 2.41-12; azl3 gdb 13.2-7 on Azure Linux 3.0 13.2-8.

Low priority for now. Upgrade to sourceware.org/git/binutils-gdb.git binutils 2.47; azl3 binutils 2.41-11 on Azure Linux 3.0 2.41-12; azl3 gdb 13.2-7 on Azure Linux 3.0 13.2-8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Apr 22, 2026
Updated
Sep 1, 2026
EPSS
0.1% · 6th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-6846

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnubinutils
redhathardened images
redhatopenshift container platform
redhatenterprise linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gnu binutilsup to 2.46 inclusive
  • redhat enterprise linux10.0
  • redhat enterprise linux6.0
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0
  • redhat hardened imagesall versions
  • redhat openshift container platform4.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsaffected

  • Red Hat Red Hat Hardened Images

    • 2.45.1-5.1.hum1 and laternot affected · rpm
    • 2.46.1-1.hum1 and laternot affected · rpm

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsunknown
    • all versionsunknown

  • sourceware.org/git/binutils-gdb.git binutils

    • before 2.47affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12binutilsfrom 0—
Debian:14binutilsbefore 2.47-12.47-1
openSUSE:Tumbleweedbinutilsbefore 2.47-1.12.47-1.1
Red Hat:hummingbird:1binutilsbefore 0:2.46.1-1.hum10:2.46.1-1.hum1
Red Hat:hummingbird:1binutilsbefore 0:2.45.1-5.1.hum10:2.45.1-5.1.hum1
Red Hat:hummingbird:1binutils-develbefore 0:2.46.1-1.hum10:2.46.1-1.hum1
Red Hat:hummingbird:1binutils-develbefore 0:2.45.1-5.1.hum10:2.45.1-5.1.hum1
Red Hat:hummingbird:1binutils-goldbefore 0:2.45.1-5.1.hum10:2.45.1-5.1.hum1
Red Hat:hummingbird:1binutils-goldbefore 0:2.46.1-1.hum10:2.46.1-1.hum1
Red Hat:hummingbird:1binutils-gprofngbefore 0:2.46.1-1.hum10:2.46.1-1.hum1
Red Hat:hummingbird:1binutils-gprofngbefore 0:2.45.1-5.1.hum10:2.45.1-5.1.hum1

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-12699finish_stab in stabs.c in GNU Binutils 2.30 allows attackers to cause a denial of service (heap-based buffer overflow) or possibly have unsp
    40Plan
  • CVE-2017-7614elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a "member access within null po
    40Plan
  • CVE-2014-9939ihex.c in GNU Binutils before 2.26 contains a stack buffer overflow when printing bad bytes in Intel Hex objects.
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-6844Apr 22, 2026 · Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files
    22Monitor
  • ← EarlierCVE-2026-6845Apr 22, 2026 · Binutils: binutils: denial of service via crafted elf file
    20Monitor
  • Later →CVE-2026-90801Sep 14, 2026 · GNU Binutils ld cache.c cache_bwrite buffer overflow
    7Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
sourceware.org/git/binutils-gdb.git binutils2.47Vendor (CNA)
azl3 binutils 2.41-11 on Azure Linux 3.02.41-12 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 gdb 13.2-7 on Azure Linux 3.013.2-8 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 binutils 2.37-20 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
cbl2 gdb 11.2-10 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
debian:binutils2.47-1 · Debian:14Package registry (OSV)
opensuse:binutils2.47-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:binutils0:2.45.1-5.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:binutils-devel0:2.45.1-5.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:binutils-gold0:2.45.1-5.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:binutils-gprofng0:2.45.1-5.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-66862114 days apartA buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service v
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records