7

CVE-2023-53717: wifi: ath9k: Fix potential stack-out-of-bounds write in ath9k_wmi_rsp_callback()

Deferred
AliasesUBUNTU-CVE-2023-53717DEBIAN-CVE-2023-53717
Published 22-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53717 is a high (CVSS 7.0) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7, physical access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
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 12 · Related 10
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4189-1

Timeline

  1. 22-10-2025
    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 stack-out-of-bounds write in ath9k_wmi_rsp_callback() Fix a stack-out-of-bounds write that occurs in a WMI response callback function that is called after a timeout occurs in ath9k_wmi_cmd(). The callback writes to wmi->cmd_rsp_buf, a stack-allocated buffer that could no longer be valid when a timeout occurs. Set wmi->last_seq_id to 0 when a timeout occurred. Found by a modified version of syzkaller. BUG: KASAN: stack-out-of-bounds in ath9k_wmi_ctrl_rx Write of size 4 Call Trace: memcpy ath9k_wmi_ctrl_rx ath9k_htc_rx_msg ath9k_hif_usb_reg_in_cb __usb_hcd_giveback_urb usb_hcd_giveback_urb dummy_timer call_timer_fn run_timer_softirq __do_softirq irq_exit_rcu sysvec_apic_timer_interrupt

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% 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

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 5.4.0-152.169 | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.20-1
Linux1 product
  • linux≥ fb9987d0f748c983bb795a86f47522313f701a08, < 89a33c3c847b19b19205cde1d924df2a6c70d8eb | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < ae4933b4f17de8e2b7ff6f91b17d3b0099a6d6bc | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < bf6dc175a2b53098a69db1236d9d53982f4b1bc0 | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < 78b56b0a613a87b61290b95be497fdfe2fe58aa6 | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < 1af7eacfad45149c54893a8a9df9e92ef89f0a90 | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < 8f28513d9520184059530c01a9f928a1b3809d3f | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < 554048a72d7ecfdd58cc1bfb56e0a1864e64e82c | ≥ fb9987d0f748c983bb795a86f47522313f701a08, < 8a2f35b9830692f7a616f2f627f943bc748af13a | 2.6.35

3 vendors · 122 products

References

12 links
Show all 12 references