01 Record

CVE-2026-64548

bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()

HighPUBLISHEDCNA: Linux

CNA base score8.4 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.5% of scored records. A rank, not a probability.

NVD base score

8.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. 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

2026-07-27 20:10Z3 MO AGO

Last updated

2026-10-19 20:48Z9 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.4)

CNA CVSS vector

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

Weaknesses

CWE-190Integer Overflow or WraparoundBase
CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

7e9e3ebe4e06f13e3757b06fffe481c98eef92086aaca4888d4db19e2700d283

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < f1644c9508d24f50dd9e8ebe8d3ba86e0996d2f5, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < a12b1575f9feabd91695a9e9d004862f7195fa25, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < ff39d0e3b4feeb65ca43c453d7c75fdf872ded0d, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < 888706a76286c547bd035432602571e8024b5305, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < db77b6bb6e6edb79b10b4efcce346eec5582d588, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < 4e40056bb5c829f0423f0a6694a0477726d2147e, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < bd004716ba75fed6d185795c85cdc92540ebeaab, 6fff607e2f14bd7c63c06c464a6f93b8efbabe28 to < 0c0a8ed85349dae298712d79cb276acfeb794d82, 4.20—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/f1644c9508d24f50dd9e8ebe8d3ba86e0996d2f5
git.kernel.orghttps://git.kernel.org/stable/c/a12b1575f9feabd91695a9e9d004862f7195fa25
git.kernel.orghttps://git.kernel.org/stable/c/ff39d0e3b4feeb65ca43c453d7c75fdf872ded0d
git.kernel.orghttps://git.kernel.org/stable/c/888706a76286c547bd035432602571e8024b5305
git.kernel.orghttps://git.kernel.org/stable/c/db77b6bb6e6edb79b10b4efcce346eec5582d588
git.kernel.orghttps://git.kernel.org/stable/c/4e40056bb5c829f0423f0a6694a0477726d2147e
git.kernel.orghttps://git.kernel.org/stable/c/bd004716ba75fed6d185795c85cdc92540ebeaab
git.kernel.orghttps://git.kernel.org/stable/c/0c0a8ed85349dae298712d79cb276acfeb794d82

07 Fixed in

Debian 12

linux
Fixed in 6.1.180-1
linux-6.12
Fixed in 6.12.100-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.100-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.