Linux: Out-of-bounds Read
CVE-2026-53179 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions d95edbbf7830d77ad68d437c384055eac8cd9892, c35ce55b12bb8fcd365daeb516e9782048119b36, 735dabdf21561a24d8bcae456c9c32f7f961a029 as the first without the flaw, so updating Linux to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.17% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Linux to d95edbbf7830d77ad68d437c384055eac8cd9892 or c35ce55b12bb8fcd365daeb516e9782048119b36 or 735dabdf21561a24d8bcae456c9c32f7f961a029 or 303f65af819f6d5aa302e82bce72b57a8575faea, whichever matches your release line, or a later version.
- Update Linux Kernel to 6.18.36 or 7.0.13, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | d3fcee1b78a533c256077f1300dd236801397cf7 up to, but not including, d95edbbf7830d77ad68d437c384055eac8cd9892; d3fcee1b78a533c256077f1300dd236801397cf7 up to, but not including, c35ce55b12bb8fcd365daeb516e9782048119b36; d3fcee1b78a533c256077f1300dd236801397cf7 up to, but not including, 735dabdf21561a24d8bcae456c9c32f7f961a029; d3fcee1b78a533c256077f1300dd236801397cf7 up to, but not including, 303f65af819f6d5aa302e82bce72b57a8575faea; d3fcee1b78a533c256077f1300dd236801397cf7 up to, but not including, 514ab98364595007d4557ecc85d7e5f012c504d3; 5.15 | d95edbbf7830d77ad68d437c384055eac8cd9892, c35ce55b12bb8fcd365daeb516e9782048119b36, 735dabdf21561a24d8bcae456c9c32f7f961a029, 303f65af819f6d5aa302e82bce72b57a8575faea, 514ab98364595007d4557ecc85d7e5f012c504d3 |
| Linux | Linux Kernel | 5.15 up to, but not including, 6.18.36; 6.19 up to, but not including, 7.0.13; 7.1 | 6.18.36, 7.0.13 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
Official description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix buffer over-read in rtw_update_protection rtw_update_protection() is called with a pointer offset into the ies buffer but the full ie_length is passed, causing a potential buffer over-read.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Other references
Recent Out-of-bounds Read vulnerabilities
- 7.5 High severity
- 7.1 High severity
- 8.4 High severity
- 9.1 Critical severity
- 8.2 High severity
- 7.1 High severity
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