CVE-2026-6846

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-22. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-19). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 22, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

2460006 – (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=2460006
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-6846

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatbinutils-main-2.46.1-1.hum12026-07-13redhat
redhatbinutils-main-2.45.1-5.1.hum12026-06-30redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
binutils2.35.2-2 ... 2.47-2 (213 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
binutils2.40-2 ... 2.47.50.20260901-1 (126 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
binutils2.44-3 ... 2.47.50.20260901-1 (52 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
binutils2.44-3 ... 2.46.90.20260712-1 (42 versions)
  • every version up to 2.47-1: fixed in 2.47-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 291 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 193 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-20 09:01 UTCEG score recompute
  3. 2026-10-20 09:01 UTCVendor advisory
  4. 2026-10-20 09:00 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-18 03:19 UTCEG score recompute
  8. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-13 10:06 UTCEG score recompute
  14. 2026-10-13 10:06 UTCVendor advisory
  15. 2026-10-13 10:06 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-12 15:45 UTCEG score recompute
  17. 2026-10-11 19:30 UTCEG score recompute
  18. 2026-10-11 16:45 UTCEG score recompute
  19. 2026-10-11 14:06 UTCEG score recompute
  20. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-10-10 00:55 UTCOSV refresh
  23. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 73 more
  1. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-09-20 09:03 UTCOSV refresh
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  27. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-09-01 12:22 UTCVendor advisory
  30. 2026-09-01 12:22 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  31. 2026-09-01 11:50 UTCEG score recompute
  32. 2026-09-01 11:50 UTCVendor advisory
  33. 2026-09-01 11:50 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  34. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-08-31 17:24 UTCEG score recompute
  36. 2026-08-31 17:24 UTCVendor advisory
  37. 2026-08-31 17:24 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  38. 2026-08-31 16:58 UTCEG score recompute
  39. 2026-08-31 16:58 UTCVendor advisory
  40. 2026-08-31 16:57 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  43. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-08-27 13:35 UTCEG score recompute
  45. 2026-08-27 13:35 UTCVendor advisory
  46. 2026-08-27 13:35 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-08-27 13:02 UTCEG score recompute
  48. 2026-08-27 13:02 UTCVendor advisory
  49. 2026-08-27 13:02 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-08-26 17:45 UTCEG score recompute
  51. 2026-08-26 17:45 UTCVendor advisory
  52. 2026-08-26 17:45 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-08-26 16:05 UTCEG score recompute
  54. 2026-08-26 16:05 UTCVendor advisory
  55. 2026-08-26 16:05 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  56. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  58. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  61. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  62. 2026-08-19 12:27 UTCEG score recompute
  63. 2026-08-19 12:27 UTCVendor advisory
  64. 2026-08-19 12:27 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-08-19 12:11 UTCVendor advisory
  66. 2026-08-19 12:11 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-08-18 17:18 UTCEG score recompute
  68. 2026-08-18 17:18 UTCVendor advisory
  69. 2026-08-18 17:18 UTCGHSA enrichmentGHSA-c64w-hpm6-xx8w · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  71. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  72. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  73. 2026-08-16 06:01 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-6846?
CVE-2026-6846 is a high-severity vulnerability; its CVE record was published on April 22, 2026. 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,…
When was CVE-2026-6846 made public?
CVE-2026-6846 was made public on April 8, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on April 22, 2026. EchelonGraph's copy of the record carries a last-modified date of September 1, 2026; the record at its source may have been updated since.
Is CVE-2026-6846 actively exploited?
CVE-2026-6846 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-6846?
CVE-2026-6846 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-6846?
A fix for CVE-2026-6846 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-6846 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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