What is CVE-2021-3119?

CVE-2021-3119 is a high-severity vulnerability in Zetetic Sqlcipher, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-03-25.

How severe is CVE-2021-3119?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Zetetic Sqlcipher

CVE-2021-3119

Zetetic SQLCipher 4.x before 4.4.3 has a NULL pointer dereferencing issue related to sqlcipher_export in crypto.c and sqlite3StrICmp in sqlite3.c. This may allow an attacker to perform a remote denial of service attack. For example, an SQL injection can be used to execute the crafted SQL command sequence, which causes a segmentation fault.

Published 2021-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Zetetic Sqlcipher

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

www.telekom.com/resource/blob/621186/3fb50ca7a4a97728be18717ed7b0062c/dl-210308… (Exploit, Vendor Advisory)
github.com/sqlcipher/sqlcipher/commit/cb71f53e8cea4802509f182fa5bead0ac6ab0e7f (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3119?: CVE-2021-3119 is a high-severity vulnerability in Zetetic Sqlcipher, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-03-25.
How severe is CVE-2021-3119?: High severity. CVSS v3 base score is 7.5 out of 10.