CVE-2020-27524 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 30 Dec 2020, 15:12 UTC Published: 11 Nov 2020, 15:15 UTC

CVE-2020-27524
Vulnerability Scoring

7.1
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: ADJACENT_NETWORK
  • Privileges Required: None
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: Low Impact
  • Integrity:
  • Availability: HIGH IMPACT

CVE-2020-27524 Vulnerability Summary

On Audi A7 MMI 2014 vehicles, the Bluetooth stack in Audi A7 MMI Multiplayer with version (N+R_CN_AU_P0395) mishandles %x and %s format string specifiers in a device name. This may lead to memory content leaks and potentially crash the services.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-27524. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-27524, 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.

Impact Analysis

Below is the Impact Analysis for CVE-2020-27524, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.237% (probability of exploit)

EPSS Percentile: 61.9% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 38.1% of others.

CVE-2020-27524 Detailed Information and External References

References

CWE

CWE-134

CAPEC

  • Format String Injection CAPEC-135 An adversary includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An adversary can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the adversary can write to the program stack.
  • String Format Overflow in syslog() CAPEC-67 This attack targets applications and software that uses the syslog() function insecurely. If an application does not explicitely use a format string parameter in a call to syslog(), user input can be placed in the format string parameter leading to a format string injection attack. Adversaries can then inject malicious format string commands into the function call leading to a buffer overflow. There are many reported software vulnerabilities with the root cause being a misuse of the syslog() function.

Vulnerable Configurations

  • cpe:2.3:a:audi:mmi_multiplayer:n\+r_cn_au_p0395:*:*:*:*:*:*:*
    cpe:2.3:a:audi:mmi_multiplayer:n\+r_cn_au_p0395:*:*:*:*:*:*:*
  • cpe:2.3:h:audi:a7:-:*:*:*:*:*:*:*
    cpe:2.3:h:audi:a7:-:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

Protect Your Infrastructure: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other Recently Published CVEs

  • CVE-2025-1392 – A vulnerability has been found in D-Link DIR-816 1.01TO and classified as problematic. Affected by this vulnerability is an unknown functionality o...
  • CVE-2024-13879 – The Stream plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.0.2 due to insufficient valida...
  • CVE-2025-21103 – Dell NetWorker Management Console, version(s) 19.11 through 19.11.0.3 & Versions prior to 19.10.0.7 contain(s) an improper neutralization of server...
  • CVE-2025-1391 – A flaw was found in the Keycloak organization feature, which allows the incorrect assignment of an organization to a user if their username or emai...
  • CVE-2025-26778 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Gallery allows Stored XSS. This issu...
  • CVE-2025-26775 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in RealMag777 BEAR allows Stored XSS. This issue...
  • CVE-2025-26773 – Missing Authorization vulnerability in Adnan Analytify allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects ...
  • CVE-2025-26772 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Detheme DethemeKit For Elementor allows Store...
  • CVE-2025-26771 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in sonalsinha21 SKT Blocks – Gutenberg based Pag...
  • CVE-2025-26770 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Joe Waymark allows Stored XSS. This issue aff...