8.2

CVE-2022-1012: linux linux_kernel

Modified
AliasesUBUNTU-CVE-2022-1012DEBIAN-CVE-2022-1012
Published 05-08-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-1012 is a high (CVSS 8.2) vulnerability in linux linux_kernel. EPSS estimates a 4.39% chance of exploitation in the next 30 days, higher than 91.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.2 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.2/10
010
High · v3.1 (NVD)
EPSS score
4.39%
0%100%
Low · +0.27 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 47 · Related 31
DLA-3065-1DSA-5161-1DSA-5173-1MGASA-2022-0194MGASA-2022-0195OPENSUSE-SU-2022:2549-1

Timeline

  1. 05-08-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

4.39%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

Increase +0.27 pp

From 4.12% 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

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu84 products
  • linuxAll versions (No fix recorded) | < 4.15.0-194.205 | < 5.4.0-126.142 | < 5.15.0-47.51
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1142.154 | < 5.4.0-1085.92 | < 5.15.0-1019.23
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Debian1 product
  • linux< 5.17.11-1
Linux1 product
  • linux_kernelEOL< 5.18 | 5.18 | 5.18:rc1 | 5.18:rc2 | 5.18:rc3 | 5.18:rc4 | 5.18:rc5

3 vendors · 86 products

References

30 links
Show all 30 references