CVE-2022-3636

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 27.3% of scored records. A rank, not a probability.

NVD base score

5.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Modified. NVD last modified this record on 2026-07-28.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-10-21 00:00Z3 YR AGO

Last updated

2026-07-28 16:51Z1 MO AGO

Reserved

2022-10-21

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.1)

CNA CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-416Use After FreeVariant

Data version

5.2

Document digest

eae14e116ba53a6c11b3becc9ebe72eb75069f0fa306f767db9c5d81699250e0

• vuldb.comVDB-211935 | Linux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after freehttps://vuldb.com/vuln/211935vdb-entrytechnical-description
• vuldb.comVDB-211935 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/211935/ctisignaturepermissions-required
• vuldb.comCVE-2022-3636 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2022-3636third-party-advisory
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6patch
• www.kernel.orghttps://www.kernel.org/product
• vuldb.comhttps://vuldb.com/?id.211935
• www.debian.orgDSA-5333https://www.debian.org/security/2023/dsa-5333vendor-advisory