7.8
HIGH CVSS 3.1
CVE-2022-38691
Cisco BootROM Certificate Type 0 Privilege Escalation Vulnerability
Description

In BootROM, there is a possible missing validation for Certificate Type 0. This could lead to local escalation of privilege with no additional execution privileges needed.

INFO

Published Date :

Sept. 1, 2025, 8:15 a.m.

Last Modified :

Sept. 2, 2025, 3:55 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2022-38691 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Validate certificate types in BootROM to prevent privilege escalation.
  • Implement proper validation for Certificate Type 0.
  • Ensure all certificate types are validated correctly.
  • Review BootROM security mechanisms.
Public PoC/Exploit Available at Github

CVE-2022-38691 has a 6 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-38691.

URL Resource
https://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-rom-vulnerabilities/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-38691 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-38691 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 23 hours, 22 minutes ago
121 stars 13 fork 13 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 84 different CVEs too.

Keeping track of companies that "care about your data 🥺"

android bootloader bootloader-unlock honor huawei iqoo nokia oppo realme samsung vivo

Updated: 6 hours, 46 minutes ago
2550 stars 77 fork 77 watcher
Born at : June 10, 2023, 12:47 p.m. This repo has been linked 2 different CVEs too.

None

Shell

Updated: 1 day, 9 hours ago
6 stars 2 fork 2 watcher
Born at : March 23, 2023, 4:32 a.m. This repo has been linked 268 different CVEs too.

None

Shell

Updated: 1 day, 11 hours ago
1 stars 0 fork 0 watcher
Born at : March 19, 2023, 1:53 a.m. This repo has been linked 269 different CVEs too.

TOP All bugbounty pentesting CVE-2023- POC Exp RCE example payload Things

bugbounty cve exp exploit payload poc rce vulnerability

Shell

Updated: 1 day, 10 hours ago
705 stars 120 fork 120 watcher
Born at : March 19, 2022, 1:54 a.m. This repo has been linked 290 different CVEs too.

✨🌟✨ my stars list, thx for https://github.com/maguowei/starred 😘

awesome-list personal

Updated: 10 hours, 6 minutes ago
19 stars 2 fork 2 watcher
Born at : April 8, 2021, 3:03 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-38691 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-38691 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 02, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-250
  • New CVE Received by [email protected]

    Sep. 01, 2025

    Action Type Old Value New Value
    Added Description In BootROM, there is a possible missing validation for Certificate Type 0. This could lead to local escalation of privilege with no additional execution privileges needed.
    Added Reference https://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-rom-vulnerabilities/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact