CVE-2022-32250: debian debian_linux Use After Free
Vulnerability summary
CVE-2022-32250 is a high (CVSS 7.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 2.91% chance of exploitation in the next 30 days, higher than 87% of scored vulnerabilities. 4 public exploits are recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 37 · Duplicates 1 · Related 17Timeline
- 02-06-2022PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.91%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.91% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
4 foundCve 2022 32250 Exploit
Maturity: poc
Exploit Reference (openwall.com)
Maturity: unknown
Exploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat112 products
- bpftool< 0:3.10.0-957.95.1.el7 | < 0:3.10.0-1062.68.1.el7
- bpftool-debuginfo< 0:3.10.0-1062.68.1.el7
- kernel< 0:3.10.0-957.95.1.el7 | < 0:3.10.0-693.104.1.el7 | < 0:3.10.0-1062.68.1.el7
- kernel-abi-whitelists< 0:3.10.0-957.95.1.el7 | < 0:3.10.0-693.104.1.el7 | < 0:3.10.0-1062.68.1.el7
- kernel-bootwrapper< 0:3.10.0-957.95.1.el7 | < 0:3.10.0-1062.68.1.el7
Ubuntu79 products
- linux< 4.4.0-227.261 | < 4.15.0-184.194 | < 5.4.0-117.132 | < 5.15.0-37.39
- linux-aws< 4.4.0-1107.113 | < 4.4.0-1143.158 | < 4.15.0-1133.143 | < 5.4.0-1078.84 | < 5.15.0-1011.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13< 5.13.0-1028.31~20.04.1
Netapp5 products
Debian2 products
- linux< 5.18.2-1
- debian_linuxEOL9.0 | 10.0
Fedoraproject1 product
- fedoraEOL35 | 36
Linux1 product
- linux_kernel≥ 4.1, < 4.9.318 | ≥ 4.10, < 4.14.283 | ≥ 4.15, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.120 | ≥ 5.11, < 5.15.45 | ≥ 5.16, < 5.17.13 | ≥ 5.18, < 5.18.2
6 vendors · 200 products
References
41 links- www.openwall.com/lists/oss-security/2022/05/31/1X Refsource MISCARTICLEREPORTExploitMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/06/03/1Mailing ListX Refsource MLISTREPORTExploitPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/06/04/1Mailing ListX Refsource MLISTREPORTPatchThird Party Advisory
- lists.fedoraproject.org/archives/…X Refsource MISC
- lists.fedoraproject.org/archives/…X Refsource MISC
- lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 41 references
- www.openwall.com/lists/oss-security/2022/08/25/1Mailing ListX Refsource MLISTPatchThird Party Advisory
- blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/X Refsource MISCExploitThird Party Advisory
