01 Record

CVE-2025-40205

btrfs: avoid potential out-of-bounds in btrfs_encode_fh()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

btrfs: avoid potential out-of-bounds in btrfs_encode_fh()

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.14% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 4.2% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Deferred. NVD last modified this record on 2026-07-30.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-11-12 21:56Z9 MO AGO

Last updated

2026-08-05 12:08Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

ea9cafe9e76ef8808557ff03777bb7843f15d09837ef1ebe2617762f358883ad

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxbe6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < 60de2f55d2aca53e81b4ef2a67d7cc9e1eb677db, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < 742b44342204e5dfe3926433823623c1a0c581df, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < d3a9a8e1275eb9b87f006b5562a287aea3f6885f, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < d91f6626133698362bba08fbc04bd72c466806d3, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < 0276c8582488022f057b4cec21975a5edf079f47, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < 361d67276eb8ec6be8f27f4ad6c6090459438fee, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < 43143776b0a7604d873d1a6f3e552a00aa930224, be6e8dc0ba84029997075a1ec77b4ddb863cbe15 to < dff4f9ff5d7f289e4545cc936362e01ed3252742, 2.6.29—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/60de2f55d2aca53e81b4ef2a67d7cc9e1eb677db
git.kernel.orghttps://git.kernel.org/stable/c/742b44342204e5dfe3926433823623c1a0c581df
git.kernel.orghttps://git.kernel.org/stable/c/d3a9a8e1275eb9b87f006b5562a287aea3f6885f
git.kernel.orghttps://git.kernel.org/stable/c/d91f6626133698362bba08fbc04bd72c466806d3
git.kernel.orghttps://git.kernel.org/stable/c/0276c8582488022f057b4cec21975a5edf079f47
git.kernel.orghttps://git.kernel.org/stable/c/361d67276eb8ec6be8f27f4ad6c6090459438fee
git.kernel.orghttps://git.kernel.org/stable/c/43143776b0a7604d873d1a6f3e552a00aa930224
git.kernel.orghttps://git.kernel.org/stable/c/dff4f9ff5d7f289e4545cc936362e01ed3252742

01 Record index

CVE-2025-40205

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-40205

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References