CVE-2020-27207

Name: CVE-2020-27207
Creator: NVD / NIST
Published: 2020-11-26T17:15:11.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2020-27207 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and sqlite3Strlen30 in sqlite3.c. A remote denial of service attack can be performed. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and sqlite3Strlen30 in sqlite3.c. A remote denial of service attack can be performed. For example, a SQL injection can be used to execute the crafted SQL command sequence. After that, some unexpected RAM data is read.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.57%

72.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Zetetic	Sqlcipher	>= 4.0, < 4.4.1

References

https://github.com/sqlcipher/sqlcipher/compare/v4.4.0...v4.4.1Third Party Advisory
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842Third Party Advisory
https://www.telekom.com/resource/blob/612796/9f221708832a465f03585a45d7f59b45/dl-201112-denial-of-serviceen-data.pdfThird Party Advisory
https://github.com/sqlcipher/sqlcipher/compare/v4.4.0...v4.4.1Third Party Advisory
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842Third Party Advisory
https://www.telekom.com/resource/blob/612796/9f221708832a465f03585a45d7f59b45/dl-201112-denial-of-serviceen-data.pdfThird Party Advisory

Timeline

Published: Nov 26, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27207?

How severe is CVE-2020-27207?

CVE-2020-27207 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27207?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27207?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST