CVE-2020-27207

Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and...

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.59%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2020-27207
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-416
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-27207
Updated: 2026-11-02

EUVDEUVD-2020-19726 No score

Record: EUVD-2020-19726
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x3vj-997j-97hq No score

Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and...

Record: GHSA-x3vj-997j-97hq
Weakness: CWE-416
Updated: 2026-11-02

OSV 7.5

Record: CVE-2020-27207
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-27207 7.5

Record: UBUNTU-CVE-2020-27207
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

zetetic sqlcipher

Affected packages

Affected packages
Package	Affected	Fixed
`sqlcipher` Ubuntu:16.04:LTS	All versions, plus listed versions 3.2.0-1.1	None known
`sqlcipher` Ubuntu:18.04:LTS	All versions, plus listed versions 3.4.1-13.4.1-1build1	None known
`sqlcipher` Ubuntu:20.04:LTS	All versions, plus listed versions 3.4.1-1build2	None known
`sqlcipher` Ubuntu:22.04:LTS	All versions, plus listed versions 3.4.1-23.4.1-2build1	None known
`sqlcipher` Ubuntu:24.04:LTS	All versions, plus listed versions 3.4.1-2build14.5.5-34.5.6-14.5.6-1build14.5.6-1build2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-27207 is a high vulnerability (CVSS 7.5) in Zetetic Sqlcipher, published November 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.59%, the 75th percentile. No source names a fixed version.