CVE-2025-68254: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
Vulnerability summary
CVE-2025-68254 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.
Not severe (CVSS 7.1, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 45 · Related 44Timeline
- 16-12-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- NVDNIST7.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-110.110 | < 6.17.0-19.19
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1052.55 | < 6.17.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.162-1 | < 6.12.63-1 | < 6.17.12-1
Linux1 product
- linux≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < c03cb111628924827351e19baa5b073e9b0d723d | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < bb5940193d813449540d8d3a82abc045be41f48a | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < c173ce97d3f0f0c0fefa39139d6d04ba60b5db22 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < d1ab7f9cee22e7b8a528da9ac953e4193b96cda5 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 38292407c2bb5b2b3131aaace4ecc7a829b40b76 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < bf323db1d883c209880bd92f3b12503e3531c3fc | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 502ddcc405b69fa92e0add6c1714d654504f6fd7 | 4.12
3 vendors · 159 products