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CVE-2018-20505

26
FAUCET Score

CVE-2018-20505 describes a denial-of-service vulnerability in SQLite 3.25.2, affecting products from Apple and Microsoft that utilize this version. An unauthenticated remote attacker can crash an application by executing arbitrary SQL statements on a table with a malformed PRIMARY KEY, such as in WebSQL environments. This vulnerability is rated as high severity (CVSS 7.5) due to its network-based attack vector and high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.25.2CPE matchmatch criteria
cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*
< 12.1.3CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.14.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
< 5.1.3CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 7.10CPE matchmatch criteria
cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.95%
Probability of exploitation in next 30 days
EPSS Percentile
93.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0695 is in the 89th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: 19856-17084Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: 16939-16817Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: 16939-17084Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: azl3 ceph 18.2.1-1 on Azure Linux 3.0Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: azl3 ceph 16.2.10-3 on Azure Linux 3.0Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 18.2.1-1
applevendor investigatingvia nvd_reference
View patch

Vendor Advisories (3)

microsoft2024-Jun/CVE-2018-20505

CVE-2018-20505

Jun 11, 2024
microsoft2019-Apr/CVE-2018-20505Important

SQLite 3.25.2 when queries are run on a table with a malformed PRIMARY KEY allows remote attackers to cause a denial of service (application crash) by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases).

Apr 9, 2019
redhatCVE-2018-20505Important

sqlite: Multiple flaws in sqlite which can be triggered via corrupted internal databases (Magellan)

Dec 4, 2018

References

seclists.org / fulldisclosure/2019/Jan/62
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Jan/64
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Jan/66
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Jan/67
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Jan/68
Mailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Jan/69
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/28
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/29
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/31
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/32
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/33
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/39
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20190502-0004
Third Party Advisory
sqlite.org / src/info/1a84668dcfdebaf12415d
ExploitVendor Advisory
support.apple.com / kb/HT209443
Vendor Advisory
support.apple.com / kb/HT209446
Vendor Advisory
support.apple.com / kb/HT209447
Vendor Advisory
support.apple.com / kb/HT209448
Vendor Advisory
support.apple.com / kb/HT209450
Vendor Advisory
support.apple.com / kb/HT209451
Vendor Advisory
usn.ubuntu.com / 4019-1
securityfocus.com / bid/106698
Third Party AdvisoryVDB Entry