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.
CVE-2026-6846
Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-22. NVD baseline CVSS 7.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EPSS
- 6.7%
- KEV
- Not listed
Published
April 22, 2026
Last Modified
July 15, 2026
Advisory Details (2)
Auto-updated Jun 4, 20262460006 – (CVE-2026-6846) CVE-2026-6846 binutils: Binutils: Arbitrary code execution via malformed XCOFF object file processing
https://bugzilla.redhat.com/show_bug.cgi?id=2460006Vendor Advisories for CVE-2026-6846(4)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:39022Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
- RHSA-2026:33527Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
- CVE-2026-6846Microsoft Security Response Center (MSRC)High
Binutils: binutils: arbitrary code execution via malformed xcoff object file processing
- GHSA-c64w-hpm6-xx8wGitHub Security AdvisoriesHigh
A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a...
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 115 total refreshes for this CVE.
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-13 22:31 UTCEPSS rescore
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- 2026-07-11 08:27 UTCEPSS rescore
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- 2026-07-09 19:10 UTCEPSS rescore
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- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-07-01 15:07 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
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- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
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- 2026-06-21 14:56 UTCEPSS rescore
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- 2026-06-21 01:59 UTCEPSS rescore
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- 2026-06-19 19:26 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-15 05:42 UTCVendor advisory
- 2026-06-15 05:42 UTCGHSA enrichment
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-14 16:57 UTCVendor advisory
- 2026-06-14 16:57 UTCGHSA enrichment
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 03:37 UTCVendor advisory
- 2026-06-12 03:37 UTCGHSA enrichment
- 2026-06-11 14:52 UTCVendor advisory
- 2026-06-11 14:52 UTCGHSA enrichment
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:19 UTCEPSS rescore
- 2026-06-10 18:09 UTCVendor advisory
- 2026-06-10 18:09 UTCGHSA enrichment
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 05:23 UTCVendor advisory
- 2026-06-10 05:23 UTCGHSA enrichment
- 2026-06-09 16:38 UTCVendor advisory
- 2026-06-09 16:38 UTCGHSA enrichment
- 2026-06-09 03:53 UTCVendor advisory
- 2026-06-09 03:53 UTCGHSA enrichment
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 14:10 UTCVendor advisory
- 2026-06-08 14:10 UTCGHSA enrichment
- 2026-06-08 01:25 UTCVendor advisory
- 2026-06-08 01:25 UTCGHSA enrichment
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 12:40 UTCVendor advisory
- 2026-06-07 12:40 UTCGHSA enrichment
- 2026-06-06 23:55 UTCVendor advisory
- 2026-06-06 23:55 UTCGHSA enrichment
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 07:55 UTCVendor advisory
- 2026-06-06 07:55 UTCGHSA enrichment
- 2026-06-05 22:47 UTCEPSS rescore
- 2026-06-05 18:49 UTCVendor advisory
- 2026-06-05 18:49 UTCGHSA enrichment
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-05 03:35 UTCVendor advisory
- 2026-06-05 03:35 UTCGHSA enrichment
- 2026-06-04 14:16 UTCVendor advisory
- 2026-06-04 14:16 UTCGHSA enrichment
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-04 01:31 UTCVendor advisory
- 2026-06-04 01:31 UTCGHSA enrichment
- 2026-06-03 12:45 UTCVendor advisory
- 2026-06-03 12:45 UTCGHSA enrichment
- 2026-06-02 20:13 UTCEPSS rescore
- 2026-06-02 17:45 UTCVendor advisory
- 2026-06-02 17:45 UTCGHSA enrichment
- 2026-06-02 05:00 UTCVendor advisory
- 2026-06-02 05:00 UTCGHSA enrichment
- 2026-06-01 15:17 UTCVendor advisory
- 2026-06-01 15:17 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2026-6846?
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What is the CVSS score of CVE-2026-6846?
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Dependency Blast Radius
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