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CVE-2022-49728

17
FAUCET Score

CVE-2022-49728 is a signed integer overflow vulnerability in the Linux kernel's IPv6 networking stack, specifically within the __ip6_append_data function. This flaw affects Linux kernel versions and can lead to a denial-of-service condition. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges to achieve high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.18.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 72nd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

autodeskpatch availablevia llm_extracted
View patch
freepbxpatch availablevia llm_extracted
View patch
honeywellpatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0
microsoftpatch availablevia msrc
Product: 17095-16823Fixed in: 5.15.180.1-1
microsoftpatch availablevia msrc
Product: 19682-17086
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0Fixed in: 5.15.180.1-1
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (5)

honeywellllm-honeywell-c82b5cfda9df97a3CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
autodeskllm-autodesk-c365b674a2ff5a3aCRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
freepbxllm-freepbx-e54908c7967265f6CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
redhatCVE-2022-49728Moderate

kernel: ipv6: Fix signed integer overflow in __ip6_append_data

Feb 26, 2025
microsoft2025-Feb/CVE-2022-49728Moderate

ipv6: Fix signed integer overflow in __ip6_append_data

Feb 11, 2025

References

git.kernel.org / stable/c/70549c80fe80ac4e2a22068c76ebebced24f7e74
git.kernel.org / stable/c/84dc940890e91e42898e4443a093281702440abf
Patch
git.kernel.org / stable/c/f26422eabeb517629568edf8c2dd9c6cb9147584
git.kernel.org / stable/c/f93431c86b631bbca5614c66f966bf3ddb3c2803
Patch
lists.debian.org / debian-lts-announce/2025/05/msg00030.html