CVE-2022-49051: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup
Vulnerability summary
CVE-2022-49051 is a medium (CVSS 6.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.3% of scored vulnerabilities.
Not severe (CVSS 6.8, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 12-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup aqc111_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips. - A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack. - A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data. Found doing variant analysis. Tested it with another driver (ax88179_178a), since I don't have a aqc111 device to test it, but the code looks very similar.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.44% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu107 products
- linuxAll versions (No fix recorded) | < 5.4.0-122.138 | < 5.15.0-37.39
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1081.88 | < 5.15.0-1011.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 361459cd9642631f048719169da9ef14cbf4a932, < 404998a137bcb8a926f7c949030afbe285472593 | ≥ 361459cd9642631f048719169da9ef14cbf4a932, < d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7 | ≥ 361459cd9642631f048719169da9ef14cbf4a932, < b416898442f2b6aa9f1b2f2968ce07e3abaa05f7 | ≥ 361459cd9642631f048719169da9ef14cbf4a932, < 36311fe98f55dea9200c69e2dd6d6ddb8fc94080 | ≥ 361459cd9642631f048719169da9ef14cbf4a932, < afb8e246527536848b9b4025b40e613edf776a9d | 5.0
- linux_kernel≥ 5.0, < 5.4.190 | ≥ 5.5, < 5.10.112 | ≥ 5.11, < 5.15.35 | ≥ 5.16, < 5.17.4 | 5.18:rc1
Debian1 product
- linux< 5.17.6-1
3 vendors · 110 products
