CVE-2023-53153wifi: cfg80211: Fix use after free for wext
- 7.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Fix use after free for wext Key information in wext.connect is not reset on (re)connect and can hold data from a previous connection. Reset key data to avoid that drivers or mac80211 incorrectly detect a WEP connection request and access the freed or already reused memory. Additionally optimize cfg80211_sme_connect() and avoid an useless schedule of conn_work.
Timeline
ID reserved
By Linux
- 5 months later
· 5 months later
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 94% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < 66af4a2ab1d65d556d638cb9555a3b823c2557a9
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < 6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < 2cfe78619b0de6d2da773978bc2d22797212eaa7
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < fd081afd21eb35b968b0330700c43ec94986e1c4
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < 22dfb21bf1cd876616d45cda1bc6daa89eec6747
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < f4b6a138efb8a32507b8946104e32cb926308da7
- affected fffd0934b9390f34bec45762192b7edd3b12b4b5 – < 015b8cc5e7c4d7bb671f1984d7b7338c310b185b
- affected 2.6.32
- unaffected < 2.6.32
- unaffected 4.14.308 – ≤ 4.14.*
- unaffected 4.19.276 – ≤ 4.19.*
- unaffected 5.4.235 – ≤ 5.4.*
- unaffected 5.10.173 – ≤ 5.10.*
- unaffected 5.15.99 – ≤ 5.15.*
- unaffected 6.1.16 – ≤ 6.1.*
- unaffected 6.2.3 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9 (opens in a new tab)
- https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6 (opens in a new tab)
- https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2 (opens in a new tab)
- https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7 (opens in a new tab)
- https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4 (opens in a new tab)
- https://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747 (opens in a new tab)
- https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7 (opens in a new tab)
- https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-59814 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-53153)Record last updated .