5.5

CVE-2022-49809: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2022-49809DEBIAN-CVE-2022-49809
Published 01-05-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2022-49809 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.20%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
SUSE-SU-2025:01918-1SUSE-SU-2025:01966-1SUSE-SU-2025:01982-1SUSE-SU-2025:01995-1SUSE-SU-2025:02173-1SUSE-SU-2025:02262-1

Timeline

  1. 01-05-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.01 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu113 products
  • linuxAll versions (No fix recorded) | < 4.15.0-206.217 | < 5.4.0-144.161 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1151.164 | < 5.4.0-1097.105 | < 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < fda0ba7c84b46d10947c687320804b9de149a921 | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < dfcfbe4f2e4b2c81cff4e79b48502d97fda73118 | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < 0ef17d966445358a55c5f4ccf2c73cca3e39192b | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < e109b41870db995cae25dfaf0cc3922f9028b1a1 | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < 9f00da9c866d506998bf0a3f699ec900730472da | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < c8baf1fc248b2e88642f094fea9509a9bf98c5bb | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < 2d675be16a461310d738d93f9f1a00da62055c5a | ≥ cb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df, < 2929cceb2fcf0ded7182562e4888afafece82cce | 7f3ea0c12493c9ff38a13a89bcf08846b50c1f1c | ≥ 3.0.72, < 3.1 | 3.1
  • linux_kernel≥ 3.0.72, < 3.1 | ≥ 3.1.1, < 4.9.334 | ≥ 4.10, < 4.14.300 | ≥ 4.15, < 4.19.267 | ≥ 4.20, < 5.4.225 | ≥ 5.5, < 5.10.156 | ≥ 5.11, < 5.15.80 | ≥ 5.16, < 6.0.10 | 3.1 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3 | 6.1:rc4 | 6.1:rc5
Debian1 product
  • linux< 6.0.10-1

3 vendors · 116 products

References

12 links
Show all 12 references