CVE-2023-52919: nfc: nci: fix possible NULL pointer dereference in send_acknowledge()
Vulnerability summary
CVE-2023-52919 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.8% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 18 · Related 18Timeline
- 22-10-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix possible NULL pointer dereference in send_acknowledge() Handle memory allocation failure from nci_skb_alloc() (calling alloc_skb()) to avoid possible NULL pointer dereference.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
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) | < 4.4.0-257.291 | < 4.15.0-227.239 | < 5.4.0-171.189 | < 5.15.0-100.110
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1134.140 | < 4.4.0-1172.187 | < 4.15.0-1170.183 | < 5.4.0-1118.128 | < 5.15.0-1056.61
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < 2b2edf089df3a69f0072c6e71563394c5a94e62e | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < 5622592f8f74ae3e594379af02e64ea84772d0dd | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < 76050b0cc5a72e0c7493287b7e18e1cb9e3c4612 | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < c95fa5b20fe03609e0894656fa43c18045b5097e | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < ffdc881f68073ff86bf21afb9bb954812e8278be | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < d7dbdbe3800a908eecd4975c31be47dd45e2104a | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < bb6cacc439ddd2cd51227ab193f4f91cfc7f014f | ≥ 391d8a2da787257aeaf952c974405b53926e3fb3, < 7937609cd387246aed994e81aa4fa951358fba41 | 3.11
- linux_kernel≥ 3.11, < 4.14.328 | ≥ 4.15, < 4.19.297 | ≥ 4.20, < 5.4.259 | ≥ 5.5, < 5.10.199 | ≥ 5.11, < 5.15.137 | ≥ 5.16, < 6.1.60 | ≥ 6.2, < 6.5.9 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4 | 6.6:rc5 | 6.6:rc6
Debian1 product
- linux< 6.1.64-1 | < 6.5.10-1
3 vendors · 119 products