CVE-2026-90801

MEDIUMNVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.6 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 90% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 5 sources updated this weekElevated
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.6Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

CVSS v3
6.6
EG Score
6.6(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity66% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 18, 2026

Advisory Details (3)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

The GNU Operating System and the Free Software Movement

https://www.gnu.org/
generic

cve_summit/Heap-buffer-overflow in `cache_bwrite` (bfdcache.c436) via malformed ELF with `--gc-sections -w`.md at main · r1ck9-2q/cve_summit · GitHub

https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via%20malformed%20ELF%20with%20%60--gc-sections%20-w%60.md
generic

34442 – ld: heap-buffer-overflow in cache_bwrite (bfd/cache.c:436) on malformed ELF with `--gc-sections -w` — still reproducible at HEAD (cf. bug 33457)

https://sourceware.org/bugzilla/show_bug.cgi?id=34442

Vendor Advisories for CVE-2026-90801(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatbinutils-main-2.46.1-1.1.hum12026-07-28redhat

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.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 39× 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.

  1. 2026-09-25 00:52 UTCEG score recompute
  2. 2026-09-25 00:52 UTCVendor advisory
  3. 2026-09-25 00:52 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-23 23:11 UTCEG score recompute
  6. 2026-09-23 23:11 UTCVendor advisory
  7. 2026-09-23 23:11 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-22 21:25 UTCEG score recompute
  10. 2026-09-22 21:25 UTCVendor advisory
  11. 2026-09-22 21:25 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 19:45 UTCEG score recompute
  15. 2026-09-21 19:45 UTCVendor advisory
  16. 2026-09-21 19:45 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-20 18:04 UTCGHSA enrichment
  19. 2026-09-19 16:23 UTCEG score recompute
  20. 2026-09-19 16:23 UTCGHSA enrichment
  21. 2026-09-18 19:28 UTCEPSS rescore
  22. 2026-09-18 14:43 UTCEG score recompute▲ 1.30
  23. 2026-09-18 14:43 UTCGHSA enrichment
  24. 2026-09-18 14:42 UTCNVD updateCVSS v3 → 6.6
  25. 2026-09-18 02:05 UTCEG score recompute
Show 14 more
  1. 2026-09-18 02:05 UTCGHSA enrichment
  2. 2026-09-17 19:32 UTCEPSS rescore
  3. 2026-09-17 00:25 UTCEG score recompute
  4. 2026-09-17 00:25 UTCGHSA enrichment
  5. 2026-09-16 14:09 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 22:44 UTCGHSA enrichment
  8. 2026-09-14 21:02 UTCEG score recompute
  9. 2026-09-14 21:02 UTCGHSA enrichment
  10. 2026-09-14 17:27 UTCEG score recompute
  11. 2026-09-14 17:26 UTCNVD updateCVSS v4 → 1.9
  12. 2026-09-14 16:45 UTCEG score recompute
  13. 2026-09-14 16:20 UTCEG score recompute
  14. 2026-09-14 16:19 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-90801?
CVE-2026-90801 is a medium vulnerability published on September 14, 2026. A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may…
When was CVE-2026-90801 disclosed?
CVE-2026-90801 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90801 actively exploited?
CVE-2026-90801 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 90.4% of all scored CVEs.
What is the CVSS score of CVE-2026-90801?
CVE-2026-90801 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-90801?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90801, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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