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CVE-2022-25636

27
FAUCET Score

CVE-2022-25636 is a heap out-of-bounds write vulnerability in the Linux kernel's netfilter module (versions 5.4 through 5.6.10), affecting products like Debian, NetApp, and Oracle. This flaw allows local users to gain elevated privileges. With a CVSS score of 7.8 (HIGH), it presents a low-complexity attack vector that can lead to high impact on confidentiality, integrity, and availability. While not listed on the KEV catalog or Hot List, and lacking public exploit code in Metasploit or ExploitDB, it has garnered significant community discussion and media coverage, indicating awareness of its potential.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.4, < 5.4.182CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.103CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.26CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.12CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.63%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0263 is in the 97th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-348.23.1.rt7.153.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-348.23.1.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: kernel-rt-0:4.18.0-305.45.1.rt7.117.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: kernel-0:4.18.0-305.45.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: redhat-virtualization-host-0:4.5.0-202205291010_8.6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-25636Important

kernel: heap out of bounds write in nf_dup_netdev.c

Feb 22, 2022

References

packetstormsecurity.com / files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
Third Party AdvisoryVDB Entry
github.com / Bonfee/CVE-2022-25636
ExploitThird Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/netfilter/nf.git/commit
PatchVendor Advisory
nickgregory.me / linux/security/2022/03/12/cve-2022-25636
ExploitThird Party Advisory
security.netapp.com / advisory/ntap-20220325-0002
Third Party Advisory
debian.org / security/2022/dsa-5095
Third Party Advisory
openwall.com / lists/oss-security/2022/02/21/2
ExploitMailing ListThird Party Advisory
oracle.com / security-alerts/cpujul2022.html
PatchThird Party Advisory
openwall.com / lists/oss-security/2022/02/22/1
Mailing ListPatchThird Party Advisory