CVE-2022-47549 Vulnerability Analysis & Exploit Details

CVE-2022-47549
Vulnerability Scoring

6.4
/10
High Risk

If left unpatched, CVE-2022-47549 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Physical
    Physical access is required to exploit this vulnerability.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2022-47549 Details

Status: Modified

Last updated: 🕗 05 Jun 2026, 20:13 UTC
Originally published on: 🕘 19 Dec 2022, 09:15 UTC

Time between publication and last update: 1264 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2022-47549 Vulnerability Summary

CVE-2022-47549: An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

Assessing the Risk of CVE-2022-47549

Access Complexity Graph

The exploitability of CVE-2022-47549 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2022-47549

CVE-2022-47549 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2022-47549, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2022-47549, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2022-47549 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2022-47549 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2022-47549 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.092% (probability of exploit)

EPSS Percentile: 41.67% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 58.33% of others.

CVE-2022-47549 References

External References

CWE Common Weakness Enumeration

CWE-347

CAPEC Common Attack Pattern Enumeration and Classification

  • Padding Oracle Crypto Attack CAPEC-463 An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
  • Signature Spoofing by Improper Validation CAPEC-475 An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

Vulnerable Configurations

  • cpe:2.3:o:trustedfirmware:op-tee:-:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:-:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:0.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:0.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:0.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:0.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:0.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:0.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:1.0.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:1.0.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:1.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:1.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:1.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:1.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:1.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.4.0:*:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.5.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.5.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.5.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.5.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.6.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.6.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:2.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:2.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.0.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.0.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.1.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.1.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.2.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.2.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.3.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.3.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.3.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.3.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.4.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.4.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.4.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.4.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.5.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.5.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.6.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.6.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.7.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.7.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.7.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.8.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.8.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.8.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.8.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.9.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.9.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.9.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.9.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.10.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.10.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.10.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.10.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.11.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.11.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.11.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.11.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.12.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.12.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.12.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.12.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.13.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.13.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.13.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.13.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.14.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.14.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.14.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.14.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.15.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.15.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.15.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.15.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.16.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.16.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.16.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.16.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.17.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.17.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.17.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.17.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.18.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.18.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.18.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.18.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.19.0:-:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.19.0:-:*:*:*:*:*:*
  • cpe:2.3:o:trustedfirmware:op-tee:3.19.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:trustedfirmware:op-tee:3.19.0:rc1:*:*:*:*:*:*

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