7.8

CVE-2023-52594: wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()

Analyzed
AliasesUBUNTU-CVE-2023-52594DEBIAN-CVE-2023-52594
Published 06-03-2024Last modified 11-05-2026

Vulnerability summary

CVE-2023-52594 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 27
DLA-3840-1DLA-3842-1DSA-5681-1RHSA-2024:3618RHSA-2024:3627RHSA-2024:9315

Timeline

  1. 06-03-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus() Fix an array-index-out-of-bounds read in ath9k_htc_txstatus(). The bug occurs when txs->cnt, data from a URB provided by a USB device, is bigger than the size of the array txs->txstatus, which is HTC_MAX_TX_STATUS. WARN_ON() already checks it, but there is no bug handling code after the check. Make the function return if that is the case. Found by a modified version of syzkaller. UBSAN: array-index-out-of-bounds in htc_drv_txrx.c index 13 is out of range for type '__wmi_event_txstatus [12]' Call Trace: ath9k_htc_txstatus ath9k_wmi_event_tasklet tasklet_action_common __do_softirq irq_exit_rxu sysvec_apic_timer_interrupt

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu116 products
  • linuxAll versions (No fix recorded) | < 4.4.0-262.296 | < 4.15.0-232.244 | < 5.4.0-181.201 | < 5.15.0-106.116
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1139.145 | < 4.4.0-1177.192 | < 4.15.0-1176.189 | < 5.4.0-1124.134 | < 5.15.0-1061.67
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < f44f073c78112ff921a220d01b86d09f2ace59bc | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < f11f0fd1ad6c11ae7856d4325fe9d05059767225 | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < 84770a996ad8d7f121ff2fb5a8d149aad52d64c1 | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < 9003fa9a0198ce004b30738766c67eb7373479c9 | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < 25c6f49ef59b7a9b80a3f7ab9e95268a1b01a234 | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < e4f4bac7d3b64eb75f70cd3345712de6f68a215d | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < be609c7002dd4504b15b069cb7582f4c778548d1 | ≥ 27876a29de221186c9d5883e5fe5f6da18ef9a45, < 2adc886244dff60f948497b59affb6c6ebb3c348 | 3.0
  • linux_kernel< 4.19.307 | ≥ 4.20, < 5.4.269 | ≥ 5.5, < 5.10.210 | ≥ 5.11, < 5.15.149 | ≥ 5.16, < 6.1.77 | ≥ 6.2, < 6.6.16 | ≥ 6.7, < 6.7.4
Debian1 product
  • linux< 6.1.82-1 | < 6.7.7-1

3 vendors · 119 products

References

34 links
Show all 34 references