CVE-2023-53032

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2025-03-27 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

Weakness Classification (1)

Affected Software (13)

VendorProductVersion
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < e137d9bb26bd85ce07323a38e38ceb0b160db841
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < feefb33eefa166fc3e0fd17547b0bc0cb3baced9
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < 4e6a70fd840400e3a2e784a6673968a3eb2431c0
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < 511cf17b2447fc41cfef8d71936e1fa53e395c1e
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < e88865876d47c790be0d5e23973499d75d034364
Linux Linux b9fed748185a96b7cfe74afac4bd228e8af16f01 < 9ea4b476cea1b7d461d16dda25ca3c7e616e2d15
Linux Linux 3.7
linux linux_kernel 3.7 – 4.14.303
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.20%
Raw Score 0.002010
Percentile 10.1%
Date 2026-11-06

EPSS Trend

2026-11-06
0.00201
2026-11-05
0.00201

Intelligence Sources

mitre ref →
nvd ref →