CVE-2020-13434

Exp

SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.

Published: 2020-05-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-13434 is rated Exploit Available (58.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.01%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-13434

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-13434

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 1.01% +0.99%
2 2026-06-05 0.06% 0.03% -0.04%
3 2023-03-07 — 0.06% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-13434

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2020-13434

OS Trackers for CVE-2020-13434

vendor priority summary link
alpine medium CVE-2020-13434: 1 source package rows (sqlite); 25 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 8, open 17. https://security.alpinelinux.org/vuln/CVE-2020-13434
debian not yet assigned CVE-2020-13434 not yet assigned priority: Debian including 1 source packages (sqlite3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-13434
gentoo normal CVE-2020-13434: 1 GLSA(s) (202007-26), 1 atom(s) (dev-db/sqlite); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-13434
redhat medium — https://access.redhat.com/security/cve/CVE-2020-13434
suse medium CVE-2020-13434 severity moderate: SUSE including 421 source package names (0.1.0:libsqlite3-0-3.36.0-3.12.1, 0.1.75:libsqlite3-0-3.36.0-3.12.1, …), 1105 product×package rows across 552 product lines (Container bci/bci-init, Container bci/bci-sle15-kernel-module-devel, … (552 product lines)): Fixed 870, Known Affected 136, Known Not Affected 99. https://www.suse.com/security/cve/CVE-2020-13434/
ubuntu medium CVE-2020-13434 medium priority: Ubuntu including 1 source packages (sqlite3), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): released 5, not-affected 1. https://ubuntu.com/security/CVE-2020-13434

Affected software / configurations for CVE-2020-13434

Vendor Product Version Raw CPE
sqlite sqlite <= 3.32.0 cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 19.10 cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
canonical ubuntu_linux 20.04 cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
freebsd freebsd >= 11.0, < 11.4 cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
freebsd freebsd 11.4 cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p10:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p11:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p12:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p5:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p6:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p7:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p9:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*
freebsd freebsd 12.1 cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
oracle communications_cloud_native_core_policy 1.14.0 cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*
oracle communications_network_charging_and_control >= 12.0.0, <= 12.0.3 cpe:2.3:a:oracle:communications_network_charging_and_control:*:*:*:*:*:*:*:*
oracle communications_network_charging_and_control 6.0.1 cpe:2.3:a:oracle:communications_network_charging_and_control:6.0.1:*:*:*:*:*:*:*
oracle outside_in_technology 8.5.5 cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*
apple icloud < 11.5 cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
apple itunes < 12.10.9 cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
apple ipados < 14.0 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 14.0 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 11.0, < 11.0.1 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 14.0 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 7.0 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2020-13434

URL Tags
http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/19 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/20 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/22 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00024.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7KXQWHIY2MQP4LNM6ODWJENMXYYQYBN/
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc Third Party Advisory
https://security.gentoo.org/glsa/202007-26 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200528-0004/ Third Party Advisory
https://support.apple.com/kb/HT211843 Third Party Advisory
https://support.apple.com/kb/HT211844 Third Party Advisory
https://support.apple.com/kb/HT211850 Third Party Advisory
https://support.apple.com/kb/HT211931 Third Party Advisory
https://support.apple.com/kb/HT211935 Third Party Advisory
https://support.apple.com/kb/HT211952 Third Party Advisory
https://usn.ubuntu.com/4394-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Patch Third Party Advisory
https://www.sqlite.org/src/info/23439ea582241138 Exploit Patch Vendor Advisory
https://www.sqlite.org/src/info/d08d3405878d394e Patch Vendor Advisory
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