7.6

CVE-2023-54286: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace

Deferred
AliasesUBUNTU-CVE-2023-54286DEBIAN-CVE-2023-54286
Published 30-12-2025Last modified 05-08-2026

Vulnerability summary

CVE-2023-54286 is a high (CVSS 7.6) vulnerability in linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 23.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.6, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.30%
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 7 · Related 5
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1

Timeline

  1. 30-12-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace A received TKIP key may be up to 32 bytes because it may contain MIC rx/tx keys too. These are not used by iwl and copying these over overflows the iwl_keyinfo.key field. Add a check to not copy more data to iwl_keyinfo.key then will fit. This fixes backtraces like this one: memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16) WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm] <snip> Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017 RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm] <snip> Call Trace: <TASK> iwl_set_dynamic_key+0x1f0/0x220 [iwldvm] iwlagn_mac_set_key+0x1e4/0x280 [iwldvm] drv_set_key+0xa4/0x1b0 [mac80211] ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211] ieee80211_key_replace+0x22d/0x8e0 [mac80211] <snip>

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% 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: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu125 products
  • linuxAll versions (No fix recorded) | < 5.4.0-162.179 | < 5.15.0-83.92
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1109.118 | < 5.15.0-1044.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1
Linux1 product
  • linux≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 76b5ea43ad2fb4f726ddfaff839430a706e7d7c2 | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 3ed3c1c2fc3482b72e755820261779cd2e2c5a3e | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < fa57021262e998e2229d6383b1081638df2fe238 | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 91ad1ab3cc7e981cb6d6ee100686baed64e1277e | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 87940e4030e4705e1f3fd2bbb1854eae8308314b | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 57189c885149825be8eb8c3524b5af017fdeb941 | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < 6cd644f66b43709816561d63e0173cb0c7aab159 | ≥ 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5, < ef16799640865f937719f0771c93be5dca18adc6 | 3.1

3 vendors · 127 products

References

12 links
Show all 12 references