Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-25. a secondary CVSS source baseline 7.8; sources differ by 0.0.
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
In the Linux kernel, the following vulnerability has been resolved:
fuse: re-lock request before returning from fuse_ref_folio()
fuse_ref_folio() unlocks the request but does not re-lock it before returning. fuse_chan_abort() can end the request and the async end callback (eg fuse_writepage_free()) can free the args while the subsequent copy chain logic after fuse_ref_folio() accesses them, leading to use-after-free issues.
Fix this by locking the request in fuse_ref_folio() before returning.
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).
July 25, 2026
August 17, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 5.10.103-1 ... 5.10.92-2 (55 versions) | 5.10.262-1 | — |
| linux-6.1 | 6.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions) | 6.1.180-1~deb11u1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.1.106-1 ... 6.1.99-1 (55 versions) | 6.1.180-1 | — |
| linux-6.12 | — | 6.12.100-1~deb12u1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions) | 6.12.96-1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.12.100-1 ... 7.1~rc7-1~exp1 (156 versions) | 7.1.4-1 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
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 183 total refreshes for this CVE.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-64266
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