01 Record

CVE-2023-53272

net: ena: fix shift-out-of-bounds in exponential backoff

HighPUBLISHEDCNA: Linux

CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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02 Description

net: ena: fix shift-out-of-bounds in exponential backoff

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 ImpactpartialSuccessful exploitation gives limited 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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 4.9% of scored records. A rank, not a probability.

NVD base score

7.1 (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:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

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

2025-09-16 08:07Z1 YR AGO

Last updated

2026-05-11 19:41Z5 MO AGO

Reserved

2025-09-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase
CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

fb37b6f2cff2a89e42ab9e4cca1e83b05e9efcfa8cb9f4ec8ac7bcc36c1a40a2

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux4bb7f4cf60e38a00965d22aa5979ab143193d41f to < 1e760b2d18bf129b3da052c2946c02758e97d15e, 4bb7f4cf60e38a00965d22aa5979ab143193d41f to < 3e36cc94d6e60a27f27498adf1c71eeba769ab33, 4bb7f4cf60e38a00965d22aa5979ab143193d41f to < 90947ebf8794e3c229fb2e16e37f1bfea6877f14, 4bb7f4cf60e38a00965d22aa5979ab143193d41f to < 0939c264729d4a081ff88efce2ffdf85dc5331e0, 4bb7f4cf60e38a00965d22aa5979ab143193d41f to < 1e9cb763e9bacf0c932aa948f50dcfca6f519a26, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1e760b2d18bf129b3da052c2946c02758e97d15e
git.kernel.orghttps://git.kernel.org/stable/c/3e36cc94d6e60a27f27498adf1c71eeba769ab33
git.kernel.orghttps://git.kernel.org/stable/c/90947ebf8794e3c229fb2e16e37f1bfea6877f14
git.kernel.orghttps://git.kernel.org/stable/c/0939c264729d4a081ff88efce2ffdf85dc5331e0
git.kernel.orghttps://git.kernel.org/stable/c/1e9cb763e9bacf0c932aa948f50dcfca6f519a26

07 Fixed in

Debian 12

linux
Fixed in 6.1.52-1

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

Debian 13

linux
Fixed in 6.4.11-1

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

Debian 14

linux
Fixed in 6.4.11-1

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